AMBARI-11074. UI - Removing config group overrides and saving doesn't save changes as they are still pending in UI (alexantonenko)

ambari-web/app/mixins/common/configs/configs_saver.js

@@ -120,7 +120,7 @@ App.ConfigsSaverMixin = Em.Mixin.create({
 
           var overridenConfigs = this.getConfigsForGroup(configs, configGroup.get('name'));
 
-          if (Em.isArray(overridenConfigs) && overridenConfigs.length) {
+          if (Em.isArray(overridenConfigs)) {
             this.saveGroup(overridenConfigs, configGroup, this.get('content.serviceName') === serviceName);
           }
         }
@@ -1250,4 +1250,4 @@ App.ConfigsSaverMixin = Em.Mixin.create({
         return value;
     }
   }
-});
+});