frontend: Notifications: Disable Notifications

There's a number of problems with Notifications. With some clusters
the number of warnings makes it not useful. Because they keep showing
new notifications over and over again.

The idea is to disable it for now, and revisit it again once we can
prove that it is working well.

Signed-off-by: René Dudfield <renedudfield@microsoft.com>

frontend/src/components/App/TopBar.tsx

@@ -35,7 +35,6 @@ import { drawerWidth } from '../Sidebar';
 import HeadlampButton from '../Sidebar/HeadlampButton';
 import { setWhetherSidebarOpen } from '../Sidebar/sidebarSlice';
 import { AppLogo } from './AppLogo';
-import Notifications from './Notifications';
 
 export interface TopBarProps {}
 
@@ -328,11 +327,7 @@ export function PureTopBar({
     ...appBarActions,
     {
       id: DefaultAppBarAction.NOTIFICATION,
-      action: (
-        <MenuItem onClick={handleMenuClose}>
-          <Notifications />
-        </MenuItem>
-      ),
+      action: null,
     },
     {
       id: DefaultAppBarAction.SETTINGS,
@@ -391,7 +386,7 @@ export function PureTopBar({
     ...appBarActions,
     {
       id: DefaultAppBarAction.NOTIFICATION,
-      action: <Notifications />,
+      action: null,
     },
     {
       id: DefaultAppBarAction.SETTINGS,