diff --git a/boot.php b/boot.php
index 4458e3d753..89a30ce1e3 100644
--- a/boot.php
+++ b/boot.php
@@ -26,7 +26,6 @@ use Friendica\Core\Config;
 use Friendica\Core\PConfig;
 use Friendica\Util\Lock;
 
-require_once 'include/config.php';
 require_once 'include/network.php';
 require_once 'include/plugin.php';
 require_once 'include/text.php';
diff --git a/include/NotificationsManager.php b/include/NotificationsManager.php
index d0b1d00679..5f9419e836 100644
--- a/include/NotificationsManager.php
+++ b/include/NotificationsManager.php
@@ -9,7 +9,6 @@ use Friendica\Core\Pconfig;
 use Friendica\Core\System;
 
 require_once 'include/html2plain.php';
-require_once 'include/probe.php';
 require_once 'include/datetime.php';
 require_once 'include/bbcode.php';
 require_once 'include/Contact.php';
diff --git a/include/config.php b/include/config.php
deleted file mode 100644
index 1c8b119bcc..0000000000
--- a/include/config.php
+++ /dev/null
@@ -1,151 +0,0 @@
-<?php
-/**
- * @file include/config.php
- *
- *  @brief (Deprecated) Arbitrary configuration storage
- * Note:
- * Please do not store booleans - convert to 0/1 integer values
- * The get_?config() functions return boolean false for keys that are unset,
- * and this could lead to subtle bugs.
- *
- * There are a few places in the code (such as the admin panel) where boolean
- * configurations need to be fixed as of 10/08/2011.
- */
-
-use Friendica\Core\Config;
-use Friendica\Core\PConfig;
-
-/**
- * @brief (Deprecated) Loads all configuration values of family into a cached storage.
- *
- * Note: This function is deprecated. Use Config::load() instead.
- *
- * @param string $family
- *  The category of the configuration value
- * @return void
- */
-function load_config($family) {
-	return Config::load($family);
-}
-
-/**
- * @brief (Deprecated) Get a particular user's config variable given the category name
- * ($family) and a key.
- *
- * Note: This function is deprecated. Use Config::get() instead.
- *
- * @param string $family
- *  The category of the configuration value
- * @param string $key
- *  The configuration key to query
- * @param boolean $refresh
- *  If true the config is loaded from the db and not from the cache
- * @return mixed Stored value or false if it does not exist
- */
-function get_config($family, $key, $refresh = false) {
-	$v = Config::get($family, $key, false, $refresh);
-	return $v;
-}
-
-/**
- * @brief (Deprecated) Sets a configuration value for system config
- *
- * Note: This function is deprecated. Use Config::set() instead.
- *
- * @param string $family
- *  The category of the configuration value
- * @param string $key
- *  The configuration key to set
- * @param string $value
- *  The value to store
- * @return mixed Stored $value or false if the database update failed
- */
-function set_config($family,$key,$value) {
-	return Config::set($family, $key, $value);
-}
-
-/**
- * @brief (Deprecated) Deletes the given key from the system configuration.
- *
- * Note: This function is deprecated. Use Config::delete() instead.
- *
- * @param string $family
- *  The category of the configuration value
- * @param string $key
- *  The configuration key to delete
- * @return mixed
- */
-function del_config($family,$key) {
-	return Config::delete($family, $key);
-}
-
-/**
- * @brief (Deprecated) Loads all configuration values of a user's config family into a cached storage.
- *
- * Note: This function is deprecated. Use PConfig::load() instead.
- *
- * @param string $uid
- *  The user_id
- * @param string $family
- *  The category of the configuration value
- * @return void
- */
-function load_pconfig($uid,$family) {
-	return PConfig::load($uid, $family);
-}
-
-/**
- * @brief (Deprecated) Get a particular user's config variable given the category name
- * ($family) and a key.
- *
- * Note: This function is deprecated. Use PConfig::get() instead.
- *
- * @param string $uid
- *  The user_id
- * @param string $family
- *  The category of the configuration value
- * @param string $key
- *  The configuration key to query
- * @param boolean $refresh
- *  If true the config is loaded from the db and not from the cache
- * @return mixed Stored value or false if it does not exist
- */
-function get_pconfig($uid, $family, $key, $refresh = false) {
-	$v = PConfig::get($uid, $family, $key, false, $refresh);
-	return $v;
-}
-
-/**
- * @brief (Deprecated) Sets a configuration value for a user
- *
- * Note: This function is deprecated. Use PConfig::set() instead.
- *
- * @param string $uid
- *  The user_id
- * @param string $family
- *  The category of the configuration value
- * @param string $key
- *  The configuration key to set
- * @param string $value
- *  The value to store
- * @return mixed Stored $value or false
- */
-function set_pconfig($uid,$family,$key,$value) {
-	return PConfig::set($uid, $family, $key, $value);
-}
-
-/**
- * @brief (Deprecated) Deletes the given key from the users's configuration.
- *
- * Note: This function is deprecated. Use PConfig::delete() instead.
- *
- * @param string $uid The user_id
- * @param string $family
- *  The category of the configuration value
- * @param string $key
- *  The configuration key to delete
- * @return mixed
- */
-function del_pconfig($uid,$family,$key) {
-	return PConfig::delete($uid, $family, $key);
-}
diff --git a/include/delivery.php b/include/delivery.php
index 059f627671..97453ae905 100644
--- a/include/delivery.php
+++ b/include/delivery.php
@@ -6,7 +6,6 @@ use Friendica\Core\Config;
 
 require_once 'include/queue_fn.php';
 require_once 'include/html2plain.php';
-require_once 'include/probe.php';
 require_once 'include/diaspora.php';
 require_once 'include/ostatus.php';
 require_once 'include/dfrn.php';
diff --git a/include/diaspora.php b/include/diaspora.php
index 846a89ba9c..ea32295275 100644
--- a/include/diaspora.php
+++ b/include/diaspora.php
@@ -17,7 +17,6 @@ use Friendica\Network\Probe;
 
 require_once 'include/items.php';
 require_once 'include/bb2diaspora.php';
-require_once 'include/probe.php';
 require_once 'include/Contact.php';
 require_once 'include/Photo.php';
 require_once 'include/socgraph.php';
diff --git a/include/discover_poco.php b/include/discover_poco.php
index 1eefd1b81f..0a41c28027 100644
--- a/include/discover_poco.php
+++ b/include/discover_poco.php
@@ -4,7 +4,6 @@ use Friendica\Core\Config;
 use Friendica\Core\Worker;
 use Friendica\Network\Probe;
 
-require_once 'include/probe.php';
 require_once 'include/socgraph.php';
 require_once 'include/datetime.php';
 
diff --git a/include/follow.php b/include/follow.php
index 55ea86f8cd..d602147a4c 100644
--- a/include/follow.php
+++ b/include/follow.php
@@ -6,7 +6,6 @@ use Friendica\Core\System;
 use Friendica\Core\Worker;
 use Friendica\Network\Probe;
 
-require_once 'include/probe.php';
 require_once 'include/socgraph.php';
 require_once 'include/group.php';
 require_once 'include/salmon.php';
diff --git a/include/gprobe.php b/include/gprobe.php
index f247c5a4d5..edc124cf89 100644
--- a/include/gprobe.php
+++ b/include/gprobe.php
@@ -3,7 +3,6 @@
 use Friendica\Core\Config;
 use Friendica\Network\Probe;
 
-require_once 'include/probe.php';
 require_once 'include/socgraph.php';
 require_once 'include/datetime.php';
 
diff --git a/include/message.php b/include/message.php
index c2678d2f1d..0202604b70 100644
--- a/include/message.php
+++ b/include/message.php
@@ -168,8 +168,6 @@ function send_wallmessage($recipient='', $body='', $subject='', $replyto=''){
 	$convid = 0;
 	$reply = false;
 
-	require_once 'include/probe.php';
-
 	$me = Probe::uri($replyto);
 
 	if (! $me['name']) {
diff --git a/include/notifier.php b/include/notifier.php
index 84c959f80d..317a9ffcad 100644
--- a/include/notifier.php
+++ b/include/notifier.php
@@ -7,7 +7,6 @@ use Friendica\Network\Probe;
 
 require_once 'include/queue_fn.php';
 require_once 'include/html2plain.php';
-require_once 'include/probe.php';
 require_once 'include/diaspora.php';
 require_once 'include/ostatus.php';
 require_once 'include/salmon.php';
diff --git a/include/ostatus.php b/include/ostatus.php
index 74941f6ef4..bafa2ddc5d 100644
--- a/include/ostatus.php
+++ b/include/ostatus.php
@@ -18,7 +18,6 @@ require_once 'mod/share.php';
 require_once 'include/enotify.php';
 require_once 'include/socgraph.php';
 require_once 'include/Photo.php';
-require_once 'include/probe.php';
 require_once 'include/follow.php';
 require_once 'include/api.php';
 require_once 'mod/proxy.php';
diff --git a/include/probe.php b/include/probe.php
deleted file mode 100644
index 8cf703be80..0000000000
--- a/include/probe.php
+++ /dev/null
@@ -1,41 +0,0 @@
-<?php
-
-use Friendica\Network\Probe;
-
-/**
- *
- * PROBE_DIASPORA has a bias towards returning Diaspora information
- * while PROBE_NORMAL has a bias towards dfrn/zot - in the case where
- * an address (such as a Friendica address) supports more than one type
- * of network.
- *
- */
-define('PROBE_NORMAL',   0);
-define('PROBE_DIASPORA', 1);
-
-/**
- * @brief Probes a network address to discover what kind of protocols we need to communicate with it.
- *
- * Warning: this function is a bit touchy and there are some subtle dependencies within the logic flow.
- * Edit with care.
- *
- * @deprecated Use Friendica\Network\Probe instead
- *
- * @see Friendica\Network\Probe::uri()
- *
- * @param string $url Any URI
- * @param int $mode One of the PROBE_* constants
- * @return array Same data array returned by Friendica\Network\Probe::uri()
- */
-function probe_url($url, $mode = PROBE_NORMAL) {
-
-	if ($mode == PROBE_DIASPORA) {
-		$network = NETWORK_DIASPORA;
-	} else {
-		$network = '';
-	}
-
-	$data = Probe::uri($url, $network);
-
-	return $data;
-}
diff --git a/include/socgraph.php b/include/socgraph.php
index 8f09b7b01f..e5c612e827 100644
--- a/include/socgraph.php
+++ b/include/socgraph.php
@@ -14,7 +14,6 @@ use Friendica\Core\Worker;
 use Friendica\Network\Probe;
 
 require_once 'include/datetime.php';
-require_once 'include/probe.php';
 require_once 'include/network.php';
 require_once 'include/html2bbcode.php';
 require_once 'include/Contact.php';
diff --git a/include/update_gcontact.php b/include/update_gcontact.php
index 654cb1fba9..e407466743 100644
--- a/include/update_gcontact.php
+++ b/include/update_gcontact.php
@@ -6,7 +6,6 @@ use Friendica\Network\Probe;
 function update_gcontact_run(&$argv, &$argc) {
 	global $a;
 
-	require_once 'include/probe.php';
 	require_once 'include/socgraph.php';
 
 	logger('update_gcontact: start');
diff --git a/include/user.php b/include/user.php
index 88bb26cdee..7eb1058dc0 100644
--- a/include/user.php
+++ b/include/user.php
@@ -3,7 +3,6 @@
 use Friendica\Core\Config;
 use Friendica\Core\System;
 
-require_once('include/config.php');
 require_once('include/network.php');
 require_once('include/plugin.php');
 require_once('include/text.php');
diff --git a/mod/contacts.php b/mod/contacts.php
index 216d2451ea..66fbedebef 100644
--- a/mod/contacts.php
+++ b/mod/contacts.php
@@ -8,7 +8,6 @@ use Friendica\Network\Probe;
 require_once 'include/Contact.php';
 require_once 'include/socgraph.php';
 require_once 'include/contact_selectors.php';
-require_once 'include/probe.php';
 require_once 'mod/proxy.php';
 require_once 'include/Photo.php';
 
diff --git a/mod/dfrn_request.php b/mod/dfrn_request.php
index cc5a36d69c..de48207a64 100644
--- a/mod/dfrn_request.php
+++ b/mod/dfrn_request.php
@@ -19,7 +19,6 @@ use Friendica\Core\System;
 use Friendica\Network\Probe;
 
 require_once 'include/enotify.php';
-require_once 'include/probe.php';
 require_once 'include/group.php';
 
 function dfrn_request_init(App $a) {
diff --git a/mod/repair_ostatus.php b/mod/repair_ostatus.php
index ea83b08adf..3372d03261 100755
--- a/mod/repair_ostatus.php
+++ b/mod/repair_ostatus.php
@@ -3,7 +3,6 @@
 use Friendica\App;
 use Friendica\Core\System;
 
-require_once 'include/probe.php';
 require_once 'include/follow.php';
 
 function repair_ostatus_content(App $a) {
diff --git a/mod/unfollow.php b/mod/unfollow.php
index 8ee96a14c8..607c17d277 100644
--- a/mod/unfollow.php
+++ b/mod/unfollow.php
@@ -3,7 +3,6 @@
 use Friendica\App;
 use Friendica\Core\System;
 
-require_once 'include/probe.php';
 require_once 'include/follow.php';
 require_once 'include/Contact.php';
 require_once 'include/contact_selectors.php';