success callback without err

lib/cartodb/backends/template_maps.js

@@ -184,7 +184,7 @@ TemplateMaps.prototype._checkUserTemplatesLimit = function(userTemplatesKey, own
     const limit = this._userTemplateLimit();
 
     if(!limit) {
-        return callback(null);
+        return callback();
     }
 
     this._redisCmd('HLEN', [userTemplatesKey], (err, numberOfTemplates) => {
@@ -200,7 +200,7 @@ TemplateMaps.prototype._checkUserTemplatesLimit = function(userTemplatesKey, own
             return callback(limitReachedError);
         }
 
-        return callback(null);
+        return callback();
     });
 };
 
@@ -251,7 +251,7 @@ TemplateMaps.prototype.addTemplate = function(owner, template, callback) {
             }
 
             this.emit('add', owner, template.name, template);
-            callback(err, template.name, template);
+            callback(null, template.name, template);
         });
     });
 };
@@ -346,7 +346,7 @@ TemplateMaps.prototype.updTemplate = function(owner, tpl_id, template, callback)
                 this.emit('update', owner, template.name, template);
             }
 
-            return callback(err, template);
+            return callback(null, template);
         });
     });
 };