Revert "Add flicker tests to verify non-match parent on exit PIP"

This reverts commit 1b51723e1ad32b6d917903151db41ecfbe79c339.

Reason for revert: `RequiresFlagsDisabled` and `RequiresFlagsEnabled` can't be inherited.

Change-Id: I5f2c4386f7c09d986e31838875eb4405bee069d1
12 files changed