diff --git a/include/queue_fn.php b/include/queue_fn.php
deleted file mode 100644
index f5375258bf..0000000000
--- a/include/queue_fn.php
+++ /dev/null
@@ -1,84 +0,0 @@
-<?php
-
-use Friendica\Core\Config;
-use Friendica\Database\DBM;
-
-function update_queue_time($id) {
-	logger('queue: requeue item ' . $id);
-	q("UPDATE `queue` SET `last` = '%s' WHERE `id` = %d",
-		dbesc(datetime_convert()),
-		intval($id)
-	);
-}
-
-function remove_queue_item($id) {
-	logger('queue: remove queue item ' . $id);
-	dba::delete('queue', ['id' => $id]);
-}
-
-/**
- * @brief Checks if the communication with a given contact had problems recently
- *
- * @param int $cid Contact id
- *
- * @return bool The communication with this contact has currently problems
- */
-function was_recently_delayed($cid) {
-	// Are there queue entries that were recently added?
-	$r = q("SELECT `id` FROM `queue` WHERE `cid` = %d
-		AND `last` > UTC_TIMESTAMP() - INTERVAL 15 MINUTE LIMIT 1",
-		intval($cid)
-	);
-
-	$was_delayed = DBM::is_result($r);
-
-	// We set "term-date" to a current date if the communication has problems.
-	// If the communication works again we reset this value.
-	if ($was_delayed) {
-		$r = q("SELECT `term-date` FROM `contact` WHERE `id` = %d AND `term-date` <= '1000-01-01' LIMIT 1",
-			intval($cid)
-		);
-		$was_delayed = !DBM::is_result($r);
-	}
-
-	return $was_delayed;
-}
-
-
-function add_to_queue($cid,$network,$msg,$batch = false) {
-
-	$max_queue = Config::get('system','max_contact_queue');
-	if ($max_queue < 1) {
-		$max_queue = 500;
-	}
-
-	$batch_queue = Config::get('system','max_batch_queue');
-	if ($batch_queue < 1) {
-		$batch_queue = 1000;
-	}
-
-	$r = q("SELECT COUNT(*) AS `total` FROM `queue` INNER JOIN `contact` ON `queue`.`cid` = `contact`.`id`
-		WHERE `queue`.`cid` = %d AND `contact`.`self` = 0 ",
-		intval($cid)
-	);
-	if (DBM::is_result($r)) {
-		if ($batch &&  ($r[0]['total'] > $batch_queue)) {
-			logger('add_to_queue: too many queued items for batch server ' . $cid . ' - discarding message');
-			return;
-		} elseif ((! $batch) && ($r[0]['total'] > $max_queue)) {
-			logger('add_to_queue: too many queued items for contact ' . $cid . ' - discarding message');
-			return;
-		}
-	}
-
-	q("INSERT INTO `queue` ( `cid`, `network`, `created`, `last`, `content`, `batch`)
-		VALUES ( %d, '%s', '%s', '%s', '%s', %d) ",
-		intval($cid),
-		dbesc($network),
-		dbesc(datetime_convert()),
-		dbesc(datetime_convert()),
-		dbesc($msg),
-		intval(($batch) ? 1: 0)
-	);
-
-}