Revert "InputDispatcher: Allow all windows to be removed from a ..."

Revert submission 19396488

Reason for revert: Reason for revert: DroidMonitor-triggered revert due to breakage https://android-build.googleplex.com/builds/tests/view?invocationId=I83300010074249798&testResultId=TR51728160843391916, bug 240320932
Reverted Changes:
I0b50d6789:InputDispatcher: Allow all windows to be removed f...
Ibe0e4326d:Send WindowInfo even if the window isn't associate...

Bug: 240320932
Change-Id: If6c7018be45ff07e45a65bea6ab0267fa5426578