i965: disable cull distance temporarily.

I'll fix this up on Monday, so leave the docs changes in place.

Signed-off-by: Dave Airlie <airlied@redhat.com>

src/mesa/drivers/dri/i965/intel_extensions.c

@@ -289,7 +289,7 @@ intelInitExtensions(struct gl_context *ctx)
       ctx->Extensions.ARB_blend_func_extended =
          !driQueryOptionb(&brw->optionCache, "disable_blend_func_extended");
       ctx->Extensions.ARB_conditional_render_inverted = true;
-      ctx->Extensions.ARB_cull_distance = true;
+      ctx->Extensions.ARB_cull_distance = false;
       ctx->Extensions.ARB_draw_buffers_blend = true;
       ctx->Extensions.ARB_ES3_compatibility = true;
       ctx->Extensions.ARB_fragment_layer_viewport = true;