Prevent finishing early on single sensor devices. am: 47e8ddbdb9

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/15162645

Change-Id: I37dfd3cd27fb0952db602a60663b83b911e616ba

src/com/android/settings/biometrics/BiometricEnrollActivity.java

@@ -242,6 +242,7 @@ public class BiometricEnrollActivity extends InstrumentedActivity {
         // This will need to be updated if the device has sensors other than BIOMETRIC_STRONG
         if (!setupWizard && authenticators == BiometricManager.Authenticators.DEVICE_CREDENTIAL) {
             launchCredentialOnlyEnroll();
+            finish();
         } else if (canUseFace && canUseFingerprint) {
             if (mParentalOptionsRequired && mGkPwHandle != null) {
                 launchFaceAndFingerprintEnroll();
@@ -405,22 +406,6 @@ public class BiometricEnrollActivity extends InstrumentedActivity {
         super.onApplyThemeResource(theme, newResid, first);
     }
 
-    @Override
-    protected void onStop() {
-        super.onStop();
-
-        if (mConfirmingCredentials
-                || mParentalOptionsRequired
-                || mMultiBiometricEnrollHelper != null) {
-            return;
-        }
-
-        if (!isChangingConfigurations()) {
-            Log.d(TAG, "Finishing in onStop");
-            finish();
-        }
-    }
-
     private void setOrConfirmCredentialsNow() {
         if (!mConfirmingCredentials) {
             mConfirmingCredentials = true;