Revert "Fix case of gesture being stuck when the Launcher is stopped mid-gesture"

This reverts commit 240b064cdb9df3914fe90a55ba94a5101bbd2b22.

Reason for revert: b/248344141

Change-Id: I559e583ddea4a68b4291ceb8ba119500d051ed36
diff --git a/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java b/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
index 41c220b..81a5c1c 100644
--- a/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
+++ b/quickstep/src/com/android/quickstep/AbsSwipeUpHandler.java
@@ -1150,13 +1150,6 @@
             boolean isCancel) {
         long duration = MAX_SWIPE_DURATION;
         float currentShift = mCurrentShift.value;
-        boolean recentsVisible = mRecentsView != null
-                && (mRecentsView.getWindowVisibility() == View.VISIBLE);
-        if (!recentsVisible) {
-            // We've hit a case where Launcher is been stopped mid-gesture, in this case, force
-            // a LAST_TASK end target
-            isCancel = true;
-        }
         final GestureEndTarget endTarget = calculateEndTarget(velocity, endVelocity,
                 isFling, isCancel);
         // Set the state, but don't notify until the animation completes
@@ -1236,7 +1229,7 @@
 
         // Let RecentsView handle the scrolling to the task, which we launch in startNewTask()
         // or resumeLastTask().
-        if (recentsVisible) {
+        if (mRecentsView != null) {
             ActiveGestureLog.INSTANCE.trackEvent(ActiveGestureErrorDetector.GestureEvent
                     .SET_ON_PAGE_TRANSITION_END_CALLBACK);
             mRecentsView.setOnPageTransitionEndCallback(