[YW] Refreshing on the Edit Universe page does not load AZSelectorTable

#3291

Summary:
Add additional check for specific Create case these lines needed for
and wipe out legacy code

Test Plan: open universe form in Edit mode, check AZconfig is being loaded

Reviewers: ram, andrew

Reviewed By: andrew

Subscribers: ui

Differential Revision: https://phabricator.dev.yugabyte.com/D7775

managed/ui/src/components/universes/UniverseForm/UniverseForm.js

@@ -138,8 +138,9 @@ class UniverseForm extends Component {
   }
 
   componentDidMount() {
-    this.props.resetConfig();
-    this.setState({editNotAllowed: true});
+    if (this.props.type === "Create") {
+      this.props.resetConfig();
+    }
   }
 
   componentWillUnmount() {