remove pointless single-row/single-col wrapper

app/assets/javascripts/monitoring/components/dashboard.vue

@@ -121,12 +121,10 @@
 <template>
   <div v-if="!showEmptyState" class="prometheus-graphs">
     <div
-      class="row"
       v-for="(groupData, index) in store.groups"
       :key="index"
+      class="panel panel-default prometheus-panel"
     >
-      <div class="col-md-12">
-        <div class="panel panel-default prometheus-panel">
       <div class="panel-heading">
         <h4>{{groupData.group}}</h4>
       </div>
@@ -141,8 +139,6 @@
       </div>
     </div>
   </div>
-    </div>
-  </div>
   <empty-state
     :selected-state="state"
     :documentation-path="documentationPath"