BiometricFragment should commitAllowingStateLoss

This is a terminal case for both authentication as well as the
activity itself, so this should be safe.

Fixes: 158635014

Test: Builds
Change-Id: Ieef1ab305e6518dbc0ae34ad59d52da82895972a

src/com/android/settings/password/BiometricFragment.java

@@ -124,7 +124,8 @@ public class BiometricFragment extends InstrumentedFragment {
 
     private void cleanup() {
         if (getActivity() != null) {
-            getActivity().getSupportFragmentManager().beginTransaction().remove(this).commit();
+            getActivity().getSupportFragmentManager().beginTransaction().remove(this)
+                    .commitAllowingStateLoss();
         }
     }