Disable failing visible consecutive layers assertion

Currently, one frame of the animation shows 2 instances of the launcher, making the test flaky

Bug: 229762973
Test: atest FlickerTests
Change-Id: I51f2854e24ea6a4114ebfd7726b5cc0ffe32e416

tests/FlickerTests/src/com/android/server/wm/flicker/close/CloseAppBackButtonTest.kt

@@ -98,6 +98,12 @@ class CloseAppBackButtonTest(testSpec: FlickerTestParameter) : CloseAppTransitio
         super.statusBarLayerRotatesScales()
     }
 
+    /** {@inheritDoc} */
+    @FlakyTest(bugId = 229762973)
+    @Test
+    override fun visibleLayersShownMoreThanOneConsecutiveEntry() =
+        super.visibleLayersShownMoreThanOneConsecutiveEntry()
+
     companion object {
         /**
          * Creates the test configurations.

tests/FlickerTests/src/com/android/server/wm/flicker/close/CloseAppHomeButtonTest.kt

@@ -101,11 +101,10 @@ class CloseAppHomeButtonTest(testSpec: FlickerTestParameter) : CloseAppTransitio
     }
 
     /** {@inheritDoc} */
-    @Presubmit
+    @FlakyTest(bugId = 229762973)
     @Test
-    override fun visibleLayersShownMoreThanOneConsecutiveEntry() {
+    override fun visibleLayersShownMoreThanOneConsecutiveEntry() =
         super.visibleLayersShownMoreThanOneConsecutiveEntry()
-    }
 
     companion object {
         /**