remove un necessary tags

src/client/js/components/Admin/Common/AdminUpdateButtonRow.jsx

@@ -6,11 +6,7 @@ const AdminUpdateButtonRow = (props) => {
   const { t } = props;
 
   return (
-    <div className="row ml-3">
-      <div className="mx-auto">
-        <button type="button" className="btn btn-primary" onClick={props.onClick} disabled={props.disabled}>{ t('Update') }</button>
-      </div>
-    </div>
+    <button type="button" className="btn btn-primary" onClick={props.onClick} disabled={props.disabled}>{ t('Update') }</button>
   );
 };