Don't notify dead client about losing control

The client cannot handle it, and the server can save time on preparing
the arguments.

Fix: 157694251
Test: Kill the process which has the focused window and see if there is
      the warning log.
Change-Id: I3422eca565f29b8e293ba6628dac74f0a1ef67b9

services/core/java/com/android/server/wm/WindowState.java

@@ -3571,6 +3571,9 @@ class WindowState extends WindowContainer<WindowState> implements WindowManagerP
     @Override
     public void notifyInsetsControlChanged() {
         ProtoLog.d(WM_DEBUG_IME, "notifyInsetsControlChanged for %s ", this);
+        if (mAppDied || mRemoved) {
+            return;
+        }
         final InsetsStateController stateController =
                 getDisplayContent().getInsetsStateController();
         try {