Revert "Do not allow system gestures when dreaming."

This reverts commit 05c9d551d854951c4fe2786f063eab8a925e43cd.

Reason for revert: leads to b/274525884

Test: manual
Fixes: 275081253
Change-Id: I4bef532b1d8cb4e4c71458e609f25da901ed943d
1 file changed