Remove unnecessary onDeveloperOptionsSwitchEnabled/Disabled override.

- default implementation has been added in the super class to handle
enabling/disabling the preference when the master developer options
switch it turned on/off. Removing all subclass that originally
implemented the methods that only contains the default behavior.

Bug: 73955632
Test: make RunSettingsRoboTests
Change-Id: I13c372c2ab498a5786b40cdc1ad3b5f3424abb5a

src/com/android/settings/development/MockLocationAppPreferenceController.java

@@ -27,7 +27,6 @@ import android.content.Intent;
 import android.content.pm.ApplicationInfo;
 import android.content.pm.PackageManager;
 import android.support.v7.preference.Preference;
-import android.support.v7.preference.PreferenceScreen;
 import android.text.TextUtils;
 
 import com.android.settings.R;
@@ -37,9 +36,8 @@ import com.android.settingslib.wrapper.PackageManagerWrapper;
 
 import java.util.List;
 
-public class MockLocationAppPreferenceController extends
-        DeveloperOptionsPreferenceController implements PreferenceControllerMixin,
-        OnActivityResultListener {
+public class MockLocationAppPreferenceController extends DeveloperOptionsPreferenceController
+        implements PreferenceControllerMixin, OnActivityResultListener {
 
     private static final String MOCK_LOCATION_APP_KEY = "mock_location_app";
     private static final int[] MOCK_LOCATION_APP_OPS = new int[]{AppOpsManager.OP_MOCK_LOCATION};
@@ -47,7 +45,6 @@ public class MockLocationAppPreferenceController extends
     private final DevelopmentSettingsDashboardFragment mFragment;
     private final AppOpsManager mAppsOpsManager;
     private final PackageManagerWrapper mPackageManager;
-    private Preference mPreference;
 
     public MockLocationAppPreferenceController(Context context,
             DevelopmentSettingsDashboardFragment fragment) {
@@ -63,13 +60,6 @@ public class MockLocationAppPreferenceController extends
         return MOCK_LOCATION_APP_KEY;
     }
 
-    @Override
-    public void displayPreference(PreferenceScreen screen) {
-        super.displayPreference(screen);
-
-        mPreference = screen.findPreference(getPreferenceKey());
-    }
-
     @Override
     public boolean handlePreferenceTreeClick(Preference preference) {
         if (!TextUtils.equals(preference.getKey(), getPreferenceKey())) {
@@ -97,16 +87,6 @@ public class MockLocationAppPreferenceController extends
         return true;
     }
 
-    @Override
-    protected void onDeveloperOptionsSwitchEnabled() {
-        mPreference.setEnabled(true);
-    }
-
-    @Override
-    protected void onDeveloperOptionsSwitchDisabled() {
-        mPreference.setEnabled(false);
-    }
-
     private void updateMockLocation() {
         final String mockLocationApp = getCurrentMockLocationApp();