Revert^2 "Nullability Annotations replacement"

This reverts commit 19d1d3d15d.

Reason for revert: revert it because this is not the root cause.

bug: 316867690
Change-Id: I0f168dbb64044aa720202af7b1040afd4f028c9c

src/com/android/settings/connecteddevice/audiosharing/AudioSharingDeviceVolumeGroupController.java

@@ -286,7 +286,7 @@ public class AudioSharingDeviceVolumeGroupController extends AudioSharingBasePre
 
             @Override
             public void onDeviceVolumeChanged(
-                    @android.annotation.NonNull BluetoothDevice device,
+                    @NonNull BluetoothDevice device,
                     @IntRange(from = -255, to = 255) int volume) {
                 CachedBluetoothDevice cachedDevice =
                         mLocalBtManager.getCachedDeviceManager().findDevice(device);