Remove SF FrontEnd flag check from test

It is on by default.

Bug: 290634611
Test: atest CtsSurfaceControlTestsStaging
Change-Id: I544be3a0fb2d62fed10a9ece5c5952ca0bdeec43
diff --git a/tests/CtsSurfaceControlTestsStaging/src/main/java/android/view/surfacecontroltests/SurfaceControlTest.java b/tests/CtsSurfaceControlTestsStaging/src/main/java/android/view/surfacecontroltests/SurfaceControlTest.java
index bed9cff..7a80ce3 100644
--- a/tests/CtsSurfaceControlTestsStaging/src/main/java/android/view/surfacecontroltests/SurfaceControlTest.java
+++ b/tests/CtsSurfaceControlTestsStaging/src/main/java/android/view/surfacecontroltests/SurfaceControlTest.java
@@ -16,11 +16,8 @@
 
 package android.view.surfacecontroltests;
 
-import static org.junit.Assume.assumeTrue;
-
 import android.Manifest;
 import android.hardware.display.DisplayManager;
-import android.os.SystemProperties;
 import android.support.test.uiautomator.UiDevice;
 import android.view.Surface;
 import android.view.SurfaceControl;
@@ -54,10 +51,6 @@
 
         UiDevice uiDevice = UiDevice.getInstance(InstrumentationRegistry.getInstrumentation());
 
-        // TODO(b/290634611): clean this up once SF new front end is enabled by default
-        assumeTrue(SystemProperties.getBoolean(
-                "persist.debug.sf.enable_layer_lifecycle_manager", false));
-
         uiDevice.wakeUp();
         uiDevice.executeShellCommand("wm dismiss-keyguard");