Merge "Remove background visibility check now that's in testbase. Test: atest Bug: 238043427" into udc-qpr-dev am: 9e005c73fa

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/24012027

Change-Id: I00c1c5e9c0c0bf1c3feea82e72bc3b0bd9383f5c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

tests/FlickerTests/src/com/android/server/wm/flicker/activityembedding/open/OpenTrampolineActivityTest.kt

@@ -66,16 +66,6 @@ class OpenTrampolineActivityTest(flicker: LegacyFlickerTest) : ActivityEmbedding
         }
     }
 
-    /** Assert the background animation layer is never visible during bounds change transition. */
-    @Presubmit
-    @Test
-    fun backgroundLayerNeverVisible() {
-        val backgroundColorLayer = ComponentNameMatcher("", "Animation Background")
-        flicker.assertLayers {
-            isInvisible(backgroundColorLayer)
-        }
-    }
-
     /** Trampoline activity should finish itself before the end of this test. */
     @Presubmit
     @Test