Revert "LockscreenPattern : missing public @hide"

This reverts commit 4544cac8b3dd748aeccba7e2c92e9d25187ec70c.
Revert "LockscreenPattern : Toggle dots/error pattern visibility (1/2)"

This reverts commit 23ee0b17aa88a72e0599efb097e13e156e7f0aa8.