Remove YGNodeMarkDirtyAndPropagateToDescendants (#1448)

Summary:
X-link: https://github.com/facebook/react-native/pull/41305

Pull Request resolved: https://github.com/facebook/yoga/pull/1448

This should not be part of Yoga's API. If benchmarks want to do this, they still can (though I don't know the ones we have for it are super valuable).

Reviewed By: javache

Differential Revision: D50963933

fbshipit-source-id: 6482bd269928188b6469a358ffde5c4f9f5f9527

yoga/node/Node.h

@@ -341,7 +341,6 @@ class YG_EXPORT Node : public ::YGNode {
       const float mainSize,
       const float crossSize,
       const float ownerWidth);
-  void markDirtyAndPropagateDownwards();
 
   // Other methods
   YGValue getFlexStartMarginValue(FlexDirection axis) const;