Revert "Fix replacesLayer assertion to account for splashscreen layer"

This reverts commit 43f5994b18.

Reason for revert: ag/21778200 makes this patch unnecessary

Change-Id: I5697d1e615fdcb3cdc5ae9135891c3d18c13458a

tests/FlickerTests/src/com/android/server/wm/flicker/CommonAssertions.kt

@@ -317,8 +317,7 @@ fun FlickerTest.replacesLayer(
             assertion.then().isVisible(ComponentNameMatcher.SNAPSHOT, isOptional = true)
         }
         if (ignoreSplashscreen) {
-            assertion.then().isSplashScreenVisibleFor(
-                    ComponentNameMatcher(newLayer.packageName, className = ""), isOptional = true)
+            assertion.then().isSplashScreenVisibleFor(newLayer, isOptional = true)
         }
 
         assertion.then().isVisible(newLayer)