Remove stray file
Remove stray file

Summary:
@public

Remove accidental copy of `Yoga-internal.h`

Reviewed By: SidharthGuglani

Differential Revision: D13596615

fbshipit-source-id: c137b45caa9c55f75f9bd199be535f1b08977249

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