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/AbstractBluetoothA2dpPreferenceController.java

@@ -147,16 +147,6 @@ public abstract class AbstractBluetoothA2dpPreferenceController extends
         mBluetoothA2dp = null;
     }
 
-    @Override
-    protected void onDeveloperOptionsSwitchEnabled() {
-        mPreference.setEnabled(true);
-    }
-
-    @Override
-    protected void onDeveloperOptionsSwitchDisabled() {
-        mPreference.setEnabled(false);
-    }
-
     /**
      * @return an array of string values that correspond to the current {@link ListPreference}.
      */