Disable subview clipping when sticky headers are enabled

Summary:
Subview clipping still causes issues on Android and would be pretty hard to fix properly, I investigated this a bit and sticky header views are getting removed because it doesn't take transform into consideration. It would also require to recalculate subview clipping on every transform change so I think it is better to just disable subview clipping in when there are sticky headers, especially since we seem to be moving away from subview clipping with things like FlatList.

**Test plan**
Tested that sticky headers work in ListView paging example.

Fixes #14000
Closes https://github.com/facebook/react-native/pull/14010

Differential Revision: D5283723

Pulled By: sahrens

fbshipit-source-id: 183b3202765ae09aaae05497694c3f514e969ea1

Libraries/Components/ScrollView/ScrollView.js

@@ -676,7 +676,13 @@ const ScrollView = React.createClass({
         {...contentSizeChangeProps}
         ref={this._setInnerViewRef}
         style={contentContainerStyle}
-        removeClippedSubviews={this.props.removeClippedSubviews}
+        removeClippedSubviews={
+          // Subview clipping causes issues with sticky headers on Android and
+          // would be hard to fix properly in a performant way.
+          Platform.OS === 'android' && hasStickyHeaders ?
+            false :
+            this.props.removeClippedSubviews
+        }
         collapsable={false}>
         {children}
       </ScrollContentContainerViewClass>;