Deliver hideInsets when target is removed

hideInsets(IME) may not be delivered to the control target if
the window requesting hide is no longer available in WindowManager's
window map. However, it is still nicer to deliver it to the default
display's control target rather than not delivering it at all.
Fix: 159623277
Test: Manually using steps in bug.

Change-Id: I22cdf20627da2183d30af444f6dd9d0375d417c1