Update paul.js

remove redundant information

paul.js

@@ -368,7 +368,6 @@ if(isIE11 && (window.location.pathname + window.location.search + window.locatio
 
 /* Wema Start: Remove link from group-icon in edit mode */
 if(isCoursePage()){
-  var arrGroupNames = new Array('editing_groupsseparate', 'editing_groupsvisible', 'editing_groupsnone');
   var icoTitle = {
     editing_groupsseparate: {
       de: 'Getrennte Gruppen',
@@ -383,11 +382,11 @@ if(isCoursePage()){
       en: 'No groups'
     }
   };
-  for(var i=0; i<arrGroupNames.length; i++) {
-    var nodeAnchor = document.getElementsByClassName(arrGroupNames[i]+' menu-action cm-edit-action');
+  for (var icoClassName of Object.keys(icoTitle)) {
+    var nodeAnchor = document.getElementsByClassName(icoClassName+' menu-action cm-edit-action');
     if(nodeAnchor.length>0) {
       for(var j=nodeAnchor.length; j>0; j--) {
-        nodeAnchor[j-1].outerHTML = nodeAnchor[j-1].innerHTML.replace('class=', 'title="'+icoTitle[arrGroupNames[i]][document.documentElement.lang]+'" class=');
+        nodeAnchor[j-1].outerHTML = nodeAnchor[j-1].innerHTML.replace('class=', 'title="'+icoTitle[icoClassName][document.documentElement.lang]+'" class=');
       }
     }
   }