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/StrictModePreferenceController.java

@@ -24,7 +24,6 @@ import android.os.SystemProperties;
 import android.support.annotation.VisibleForTesting;
 import android.support.v14.preference.SwitchPreference;
 import android.support.v7.preference.Preference;
-import android.support.v7.preference.PreferenceScreen;
 import android.view.IWindowManager;
 
 import com.android.settings.core.PreferenceControllerMixin;
@@ -43,8 +42,6 @@ public class StrictModePreferenceController extends DeveloperOptionsPreferenceCo
 
     private final IWindowManager mWindowManager;
 
-    private SwitchPreference mPreference;
-
     public StrictModePreferenceController(Context context) {
         super(context);
 
@@ -57,13 +54,6 @@ public class StrictModePreferenceController extends DeveloperOptionsPreferenceCo
         return STRICT_MODE_KEY;
     }
 
-    @Override
-    public void displayPreference(PreferenceScreen screen) {
-        super.displayPreference(screen);
-
-        mPreference = (SwitchPreference) screen.findPreference(getPreferenceKey());
-    }
-
     @Override
     public boolean onPreferenceChange(Preference preference, Object newValue) {
         final boolean isEnabled = (Boolean) newValue;
@@ -73,19 +63,14 @@ public class StrictModePreferenceController extends DeveloperOptionsPreferenceCo
 
     @Override
     public void updateState(Preference preference) {
-        mPreference.setChecked(isStrictModeEnabled());
-    }
-
-    @Override
-    protected void onDeveloperOptionsSwitchEnabled() {
-        mPreference.setEnabled(true);
+        ((SwitchPreference) mPreference).setChecked(isStrictModeEnabled());
     }
 
     @Override
     protected void onDeveloperOptionsSwitchDisabled() {
+        super.onDeveloperOptionsSwitchDisabled();
         writeStrictModeVisualOptions(false);
-        mPreference.setEnabled(false);
-        mPreference.setChecked(false);
+        ((SwitchPreference) mPreference).setChecked(false);
     }
 
     private boolean isStrictModeEnabled() {