Revert "Add ActivityOption to remove keyguard when an activity i..."

Revert submission 17982448-ActivityOption_DismissKeyguard

Reason for revert: Exploitable, b/286371465

Bug: 286371465
Reverted changes: /q/submissionid:17982448-ActivityOption_DismissKeyguard

Change-Id: I3f76d12ef199e3bffbc47b750367742e8a137977
8 files changed