Index: includes/parser/Parser.php
===================================================================
--- includes/parser/Parser.php	(revision 62187)
+++ includes/parser/Parser.php	(working copy)
@@ -4032,12 +4032,6 @@
 			'~~~' => $sigText
 		) );
 
-		# Links of the form [[|<blah>]] or [[<blah>|]] perform pipe tricks
-		# Note this only allows the # in the position it works.
-		global $wgLegalTitleChars;
-		$pipeTrickRe = "/\[\[(?:(\\|)([$wgLegalTitleChars]+)|([#$wgLegalTitleChars]+)\\|)\]\]/";
-		$text = preg_replace_callback( $pipeTrickRe, array( $this, 'pstPipeTrickCallback' ), $text );
-
 		# Trim trailing whitespace
 		$text = rtrim( $text );