Revert "Dismiss keyguard when simpin auth'd and..."

Revert submission 22621774-cherrypicker-L22000000959901080:N28400001357657640

Reason for revert: causing a partner bug
Fixes: 295205456
Bug: 222446076

Reverted changes: /q/submissionid:22621774-cherrypicker-L22000000959901080:N28400001357657640
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:0afa6707fa632c1f5fba5dff46a94b5d734e2ab2)
Merged-In: Icb27b4d897696b4fbb4e4a878751d925f5205dfd
Change-Id: Icb27b4d897696b4fbb4e4a878751d925f5205dfd