diff --git a/include/bb2diaspora.php b/include/bb2diaspora.php
deleted file mode 100644
index 932d543db1..0000000000
--- a/include/bb2diaspora.php
+++ /dev/null
@@ -1,12 +0,0 @@
-<?php
-
-use Friendica\Content\Text\BBCode;
-use Friendica\Content\Text\Markdown;
-
-function diaspora2bb($s) {
-	return Markdown::toBBCode($s);
-}
-
-function bb2diaspora($Text, $fordiaspora = true) {
-	return BBCode::toMarkdown($Text, $fordiaspora);
-}