Nuke everything obsoleted by task snapshots

Test: go/wm-smoke
Change-Id: If9c9c2e66d97d6a5fa94d0d62ae7459fdde2a9a0
diff --git a/services/core/java/com/android/server/wm/TaskSnapshotController.java b/services/core/java/com/android/server/wm/TaskSnapshotController.java
index ecf9067..4632402 100644
--- a/services/core/java/com/android/server/wm/TaskSnapshotController.java
+++ b/services/core/java/com/android/server/wm/TaskSnapshotController.java
@@ -16,8 +16,6 @@
 
 package com.android.server.wm;
 
-import static android.app.ActivityManager.ENABLE_TASK_SNAPSHOTS;
-
 import static com.android.server.wm.TaskSnapshotPersister.DISABLE_FULL_SIZED_BITMAPS;
 import static com.android.server.wm.TaskSnapshotPersister.REDUCED_SCALE;
 import static com.android.server.wm.WindowManagerDebugConfig.TAG_WITH_CLASS_NAME;
@@ -225,7 +223,7 @@
     }
 
     private boolean shouldDisableSnapshots() {
-        return !ENABLE_TASK_SNAPSHOTS || mIsRunningOnWear || mIsRunningOnTv || mIsRunningOnIoT;
+        return mIsRunningOnWear || mIsRunningOnTv || mIsRunningOnIoT;
     }
 
     private Rect minRect(Rect rect1, Rect rect2) {