macosx: disable fullscreen hack on yosemite and higher
macosx: disable fullscreen hack on yosemite and higher

It seems that Apple fixed this issue starting with Yosemite.

xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc