libgl-gdi: Fix unused-variable warnings.
src/gallium/targets/libgl-gdi/libgl_gdi.c:59:16: warning: ‘use_swr’ defined but not used [-Wunused-variable] 59 | static boolean use_swr = FALSE; | ^~~~~~~ src/gallium/targets/libgl-gdi/libgl_gdi.c:58:16: warning: ‘use_llvmpipe’ defined but not used [-Wunused-variable] 58 | static boolean use_llvmpipe = FALSE; | ^~~~~~~~~~~~
Signed-off-by: Vinson Lee vlee@freedesktop.org