Fix compilation, remove assignment of variable that was removed due
to being unused otherwise.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@36330 b3059339-0415-0410-9bf9-f77b7e298cf2
vo_gl: Fix chroma with rectangle=1.


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@36331 b3059339-0415-0410-9bf9-f77b7e298cf2