Disable test that is killing the presubmit.

See bug for context

Bug: 254635291
Test: presubmit.
Change-Id: Ice4bf9ad408763a54ef7230887eae2ffd7d7121d

packages/SystemUI/tests/src/com/android/systemui/clipboardoverlay/ClipboardOverlayControllerTest.java

@@ -40,6 +40,7 @@ import com.android.systemui.broadcast.BroadcastSender;
 import com.android.systemui.screenshot.TimeoutHandler;
 
 import org.junit.Before;
+import org.junit.Ignore;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.mockito.ArgumentCaptor;
@@ -47,6 +48,7 @@ import org.mockito.Captor;
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
 
+@Ignore("b/254635291")
 @SmallTest
 @RunWith(AndroidJUnit4.class)
 public class ClipboardOverlayControllerTest extends SysuiTestCase {