Revert "Add an aconfig flag of making action mode view edge-to-edge"

Revert submission 31806223

Reason for revert: b/403404572

Reverted changes: /q/submissionid:31806223
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:90a4dc74b849860c4d7775e140d7e00f25e2d890)
Merged-In: I2a67529724dfbf4396181260731baedbbc6d84bd
Change-Id: I2a67529724dfbf4396181260731baedbbc6d84bd