Ensure we disconnect from EditorInteractionSystemViewportSelectionRequestBus while recreating m_interactionRequests (#2884)

Fixes a crash while selecting an entity in the viewport while in 'pick' mode.

Code/Framework/AzToolsFramework/AzToolsFramework/ViewportUi/ViewportUiDisplay.cpp

@@ -380,7 +380,6 @@ namespace AzToolsFramework::ViewportUi::Internal
         }
 
         PrepareWidgetForViewportUi(widget);
-        m_renderOverlay->setFocus();
     }
 
     void ViewportUiDisplay::SetUiOverlayContentsAnchored(QPointer<QWidget> widget, const Qt::Alignment alignment)
@@ -392,7 +391,6 @@ namespace AzToolsFramework::ViewportUi::Internal
 
         PrepareWidgetForViewportUi(widget);
         m_uiOverlayLayout.AddAnchoredWidget(widget, alignment);
-        m_renderOverlay->setFocus();
     }
 
     void ViewportUiDisplay::UpdateUiOverlayGeometry()