Remove unnecessary locking that causes deadlock.

This was moved from PackageManagerService but we forgot to remove the
unnecessary synchronization on mLock, which will result in calling
into package manager with the permission lock held.

Fixes: 177178190
Test: presubmit
Change-Id: I5b4a6a337e94e8483067cac5143e45d08b2eb983
1 file changed