Simplifying conditional logic.

Summary:
This should be functionally identical, but avoids unnecessary conditionals in the code.

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Closes #15147

Differential Revision: D5497883

Pulled By: javache

fbshipit-source-id: a4b182084ffce87adac56013a178fbc5a7a5d1bb

ReactAndroid/src/main/java/com/facebook/react/views/scroll/ReactHorizontalScrollView.java

@@ -284,22 +284,18 @@ public void run() {
           mActivelyScrolling = false;
           ReactHorizontalScrollView.this.postOnAnimationDelayed(this, ReactScrollViewHelper.MOMENTUM_DELAY);
         } else {
-          boolean doneWithAllScrolling = true;
           if (mPagingEnabled && !mSnappingToPage) {
             // Only if we have pagingEnabled and we have not snapped to the page do we
             // need to continue checking for the scroll.  And we cause that scroll by asking for it
             mSnappingToPage = true;
             smoothScrollToPage(0);
-            doneWithAllScrolling = false;
-          }
-          if (doneWithAllScrolling) {
+            ReactHorizontalScrollView.this.postOnAnimationDelayed(this, ReactScrollViewHelper.MOMENTUM_DELAY);
+          } else {
             if (mSendMomentumEvents) {
               ReactScrollViewHelper.emitScrollMomentumEndEvent(ReactHorizontalScrollView.this);
             }
             ReactHorizontalScrollView.this.mPostTouchRunnable = null;
             disableFpsListener();
-          } else {
-            ReactHorizontalScrollView.this.postOnAnimationDelayed(this, ReactScrollViewHelper.MOMENTUM_DELAY);
           }
         }
       }