bug 946791 - remove unused GLContextGLX::mLibType (leaving GLXLibrary::mLibType alone) r=bjacob

gfx/gl/GLContextProviderGLX.cpp

@@ -952,7 +952,6 @@ private:
           mDrawable(aDrawable),
           mDeleteDrawable(aDeleteDrawable),
           mDoubleBuffered(aDoubleBuffered),
-          mLibType(libType),
           mGLX(&sGLXLibrary[libType]),
           mPixmap(aPixmap)
     {
@@ -967,7 +966,6 @@ private:
     bool mDeleteDrawable;
     bool mDoubleBuffered;
 
-    LibType mLibType;
     GLXLibrary* mGLX;
 
     nsRefPtr<gfxXlibSurface> mPixmap;