Index: includes/Linker.php
===================================================================
--- includes/Linker.php	(revision 53993)
+++ includes/Linker.php	(working copy)
@@ -203,6 +203,12 @@
 		if( is_null( $text ) ) {
 			$text = $this->linkText( $target );
 		}
+		# remove the title attribute if it's the same as the link text
+		global $wgCapitalLinks;
+		$textcmp = $wgCapitalLinks ? ucfirst( $text ) : $text;
+		if ( $textcmp == $attribs['title'] ) {
+			unset ( $attribs['title'] );
+		}
 
 		$ret = null;
 		if( wfRunHooks( 'LinkEnd', array( $this, $target, $options, &$text, &$attribs, &$ret ) ) ) {