Prevent to revoke input focus from recentsAnimationInputConsumer

During recents animation, there are increasing number of ANR, that is
because the input focus is suppose to be on the
recents_animation_input_consumer, but the focus is revoked falsely.

To fix the issue, stop sending requet to remove focus when the focus is
on the input consumer.

Bug: 222232784
Bug: 223750399
Test: manual
Change-Id: Id19d64d8027a07dc9a1236d10b9e1185ebc717c4