Skip reveal animation with invisible starting window

If the app window is drawn before the starting window, the
visibility flags of starting window will be cleared in
ActivityRecord#commitVisibility. Then it is unnecessary to
play the reveal animation for an invisible starting window.

Bug: 240239537
Test: com.android.server.wm.flicker.launch.OpenAppWarmTest
Change-Id: Ib1d585e9384989cc8aab95e3b3d891555106713c