remove more unused functions

www/common/cryptpad-common.js

@@ -224,14 +224,6 @@ define([
 
     var isArray = common.isArray = $.isArray;
 
-    var truncate = common.truncate = function (text, len) {
-        if (typeof(text) === 'string' && text.length > len) {
-            return text.slice(0, len) + '…';
-        }
-        return text;
-    };
-
-
     /*
      *  localStorage formatting
      */
@@ -313,15 +305,6 @@ define([
         });
     };
 
-    var isNameAvailable = function (title, parsed, pads) {
-        return !pads.some(function (pad) {
-            // another pad is already using that title
-            if (pad.title === title) {
-                return true;
-            }
-        });
-    };
-
     // Create untitled documents when no name is given
     var getDefaultName = common.getDefaultName = function (parsed) {
         var type = parsed.type;