gsdx-ogl: forget a pointer


git-svn-id: http://pcsx2.googlecode.com/svn/trunk@5930 96395faa-99c1-11dd-bbfe-3dabce05a288
gsdx-ogl: one more


git-svn-id: http://pcsx2.googlecode.com/svn/trunk@5931 96395faa-99c1-11dd-bbfe-3dabce05a288