Simplify YGNodeEmptyContainer / YGNodeWithMeasureFunc / YGNodeFixedSize
Simplify YGNodeEmptyContainer / YGNodeWithMeasureFunc / YGNodeFixedSize

Summary:
These methods are only ever called just after setting the various YGStyle props. Therefore we can read any padding / margin / border state from there rather than recalculating it.

Changelog: [Internal]

Reviewed By: SidharthGuglani

Differential Revision: D27010098

fbshipit-source-id: a33f879b25c54cfdb0ffc724b6aa325858e97df5

facebook/css-layout,facebook/yoga,facebook/yoga,facebook/yoga,facebook/yoga,facebook/css-layout,facebook/css-layout,facebook/yoga,facebook/css-layout,facebook/yoga,facebook/yoga,facebook/css-layout,facebook/yoga,facebook/css-layout,facebook/yoga,facebook/css-layout,facebook/css-layout,facebook/css-layout,facebook/yoga