Modify minimize flicker test assertions.

Remove AppWindowOnTopAtStart on minimizing the last app.

Fixes: 396856648
Test: atest MnimizeAppsWithKeyboard
Flag: EXEMPT test fix
Change-Id: If2b25f3df74d5ed49ab8c8269ca98b93f94d9304
diff --git a/libs/WindowManager/Shell/tests/e2e/desktopmode/flicker-service/src/com/android/wm/shell/flicker/DesktopModeFlickerScenarios.kt b/libs/WindowManager/Shell/tests/e2e/desktopmode/flicker-service/src/com/android/wm/shell/flicker/DesktopModeFlickerScenarios.kt
index 4c443d7..d73d08c 100644
--- a/libs/WindowManager/Shell/tests/e2e/desktopmode/flicker-service/src/com/android/wm/shell/flicker/DesktopModeFlickerScenarios.kt
+++ b/libs/WindowManager/Shell/tests/e2e/desktopmode/flicker-service/src/com/android/wm/shell/flicker/DesktopModeFlickerScenarios.kt
@@ -498,9 +498,9 @@
                         it.remove(VisibleLayersShownMoreThanOneConsecutiveEntry())
                     } +
                     listOf(
-                        AppWindowOnTopAtStart(DESKTOP_MODE_APP),
                         AppWindowBecomesInvisible(DESKTOP_MODE_APP),
                         AppWindowOnTopAtEnd(LAUNCHER),
+                        AppWindowIsInvisibleAtEnd(DESKTOP_WALLPAPER),
                     ).associateBy({ it }, { AssertionInvocationGroup.BLOCKING })
             )
         val OPEN_UNLIMITED_APPS =