chore: remove surplus comment

exist-app/modules/commons.xqm

@@ -125,8 +125,6 @@ as element() {
             $start-node/following::tei:ab[last()]
 };
 
-(: following added by MERGE !55 feat/#52-annotation-api-tests :)
-
 declare function commons:get-metadata-file($uri as xs:string)
 as document-node() {
     doc($commons:meta || $uri || ".xml")