[Live Tile] Support launching another task (other than the current running task) in Overview

- Get rid of the defer cancelation logic
- Render animation on the task view of the task being launched upon task view appeared callback
- Finish the recents animation upon the end of the recents window animation

Fixes: 164926736
Test: manual
Change-Id: Ibffb6a9c74c235efc8615a22b0306551532c7b61

quickstep/src/com/android/quickstep/RecentsAnimationController.java

@@ -88,24 +88,6 @@ public class RecentsAnimationController {
         }
     }
 
-    /**
-     * Notifies the controller that we want to defer cancel until the next app transition starts.
-     * If {@param screenshot} is set, then we will receive a screenshot on the next
-     * {@link RecentsAnimationCallbacks#onAnimationCanceled(ThumbnailData)} and we must also call
-     * {@link #cleanupScreenshot()} when that screenshot is no longer used.
-     */
-    public void setDeferCancelUntilNextTransition(boolean defer, boolean screenshot) {
-        mController.setDeferCancelUntilNextTransition(defer, screenshot);
-    }
-
-    /**
-     * Cleans up the screenshot previously returned from
-     * {@link RecentsAnimationCallbacks#onAnimationCanceled(ThumbnailData)}.
-     */
-    public void cleanupScreenshot() {
-        UI_HELPER_EXECUTOR.execute(() -> mController.cleanupScreenshot());
-    }
-
     /**
      * Remove task remote animation target from
      * {@link RecentsAnimationCallbacks#onTaskAppeared(RemoteAnimationTargetCompat)}}.