Revert "Make action mode view extend into system insets area"

Revert submission 31806223

Reason for revert: b/403404572

Reverted changes: /q/submissionid:31806223
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:29918fbcdc22e4cb87d146196baf9e2d0a5945fc)
Merged-In: I4499a0e5e8d00a400f7ea471ea54ec1d828a75a7
Change-Id: I4499a0e5e8d00a400f7ea471ea54ec1d828a75a7
3 files changed