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/ConnectivityMonitorPreferenceController.java

@@ -20,7 +20,6 @@ import android.content.Context;
 import android.os.SystemProperties;
 import android.support.v14.preference.SwitchPreference;
 import android.support.v7.preference.Preference;
-import android.support.v7.preference.PreferenceScreen;
 import android.text.TextUtils;
 import android.widget.Toast;
 
@@ -29,9 +28,8 @@ import com.android.settings.R;
 import com.android.settings.core.PreferenceControllerMixin;
 import com.android.settingslib.development.DeveloperOptionsPreferenceController;
 
-public class ConnectivityMonitorPreferenceController extends
-        DeveloperOptionsPreferenceController implements Preference.OnPreferenceChangeListener,
-        PreferenceControllerMixin {
+public class ConnectivityMonitorPreferenceController extends DeveloperOptionsPreferenceController
+        implements Preference.OnPreferenceChangeListener, PreferenceControllerMixin {
 
     private static final String KEY_CONNECTIVITY_MONITOR_SWITCH = "connectivity_monitor_switch";
     @VisibleForTesting
@@ -53,19 +51,10 @@ public class ConnectivityMonitorPreferenceController extends
     @VisibleForTesting
     static final String ENG_BUILD = "eng";
 
-    private SwitchPreference mPreference;
-
     public ConnectivityMonitorPreferenceController(Context context) {
         super(context);
     }
 
-    @Override
-    public void displayPreference(PreferenceScreen screen) {
-        super.displayPreference(screen);
-
-        mPreference = (SwitchPreference) screen.findPreference(KEY_CONNECTIVITY_MONITOR_SWITCH);
-    }
-
     @Override
     public String getPreferenceKey() {
         return KEY_CONNECTIVITY_MONITOR_SWITCH;
@@ -92,19 +81,14 @@ public class ConnectivityMonitorPreferenceController extends
     @Override
     public void updateState(Preference preference) {
         final boolean enabled = isConnectivityMonitorEnabled();
-        mPreference.setChecked(enabled);
-    }
-
-    @Override
-    protected void onDeveloperOptionsSwitchEnabled() {
-        mPreference.setEnabled(true);
+        ((SwitchPreference) mPreference).setChecked(enabled);
     }
 
     @Override
     protected void onDeveloperOptionsSwitchDisabled() {
+        super.onDeveloperOptionsSwitchDisabled();
         SystemProperties.set(PROPERTY_CONNECTIVITY_MONITOR, USER_DISABLED_STATUS);
-        mPreference.setChecked(false);
-        mPreference.setEnabled(false);
+        ((SwitchPreference) mPreference).setChecked(false);
     }
 
     private boolean isConnectivityMonitorEnabled() {