It doesn't seem necessary anymore (and anyway, existing cases like
Taskbar being stashed while IME is showing handle this as well).
Removing the specific block fixes a bug where touches were going
to the underlying app even though Taskbar window is fullscreen
while editing a Folder name.
Fixes: 400859085
Test: TaskbarInsetsControllerTest
Flag: EXEMPT bugfix
Change-Id: If30acd0b3b9c3fd0b29b94ca963beb1c70162416
Tony Wickham
41b1c52c7f