Revert "Fix missing observer reply callbacks"

This should not have merged from mnc-dr-dev, the underlying implementation has changed

This reverts commit dbb75248b1.

packages/SystemUI/src/com/android/systemui/statusbar/phone/PhoneStatusBarPolicy.java

@@ -398,12 +398,6 @@ public class PhoneStatusBarPolicy implements Callback, RotationLockController.Ro
                 @Override
                 public void onUserSwitching(int newUserId) throws RemoteException {
                     mUserInfoController.reloadUserInfo();
-                    if (reply != null) {
-                        try {
-                            reply.sendResult(null);
-                        } catch (RemoteException e) {
-                        }
-                    }
                 }
 
                 @Override

services/core/java/com/android/server/fingerprint/FingerprintService.java

@@ -1186,12 +1186,6 @@ public class FingerprintService extends SystemService implements IBinder.DeathRe
                     public void onUserSwitching(int newUserId) throws RemoteException {
                         mHandler.obtainMessage(MSG_USER_SWITCHING, newUserId, 0 /* unused */)
                                 .sendToTarget();
-                        if (reply != null) {
-                            try {
-                                reply.sendResult(null);
-                            } catch (RemoteException e) {
-                            }
-                        }
                     }
                     @Override
                     public void onUserSwitchComplete(int newUserId) throws RemoteException {