Remove delay in testFocusedViewDeclaredAsKeepClearArea

TV PiP repositioning in response to keep clear area changes will be
debounced in SystemUI, so the client side delay in setting a keep clear
area with focus becomes obsolete.
Instead the config is turned into a flag for whether focused views
should automatically be marked as keep clear areas.

Bug: 231309309
Test: atest KeepClearRectsTests
Change-Id: I49cf1c62f92dc701052d7117c75a4e1c33c00509
Merged-In: I49cf1c62f92dc701052d7117c75a4e1c33c00509
1 file changed