Revert "DashboardScene: prevent panel hovel header crop with scenes" (#85865)

Revert "DashboardScene: prevent panel hovel header crop with scenes (#85780)"

This reverts commit 23f1732855.

public/app/features/dashboard-scene/panel-edit/PanelOptions.test.tsx

@@ -22,13 +22,6 @@ jest.mock('react-router-dom', () => ({
   }),
 }));
 
-jest.mock('@grafana/runtime', () => ({
-  ...jest.requireActual('@grafana/runtime'),
-  getPluginImportUtils: () => ({
-    getPanelPluginFromCache: jest.fn(),
-  }),
-}));
-
 // Needed when the panel is not part of an DashboardScene
 jest.spyOn(utils, 'getDashboardSceneFor').mockReturnValue(new DashboardScene({}));