Also remove the reference to platform.winmd for VCLibs 14
Also remove the reference to platform.winmd for VCLibs 14

zjsxwc/Win2D,ChrisBriggsy/Win2D,zjsxwc/Win2D,LanceMcCarthy/Win2D,LanceMcCarthy/Win2D,zjsxwc/Win2D,ChrisBriggsy/Win2D,LanceMcCarthy/Win2D,ChrisBriggsy/Win2D