apps/bookmarks: remove unused variable

This is not needed anymore since commit
6b64aa3f.

Signed-off-by: Florian Pritz <bluewind@xinu.at>

apps/bookmarks/bookmarksHelper.php

@@ -65,7 +65,5 @@ function getURLMetadata($url) {
 	@preg_match( "/<title>(.*)<\/title>/si", $page, $match );
 	$metadata['title'] = htmlspecialchars_decode(@$match[1]); 
 
-	$meta = get_meta_tags($url);
-	
 	return $metadata;
 }
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