Revert "Adding flag com.android.graphics.surfaceflinger.flags.skip_invisible_windows_in_input to trunk_staging."

This reverts commit bd6e66f6af3ce308dd28275ff79b450ffef932ca.

Reason for revert: <Droidmonitor created revert due to b/393230261.verifying through ABTD before before Gantry rollback. This is part of the standard investigation process, and does not mean your CL will be reverted>

Change-Id: I752292e86e05e31826ed78937452af21547095d5