Remove last remnants of pre-renderbuffer code.
diff --git a/src/mesa/drivers/common/driverfuncs.c b/src/mesa/drivers/common/driverfuncs.c
index f2e36b7..93d195d 100644
--- a/src/mesa/drivers/common/driverfuncs.c
+++ b/src/mesa/drivers/common/driverfuncs.c
@@ -138,8 +138,8 @@
    driver->ColorMask = NULL;
    driver->ColorMaterial = NULL;
    driver->CullFace = NULL;
-   driver->DrawBuffer = _swrast_DrawBuffer;
-   driver->DrawBuffers = NULL; /***_swrast_DrawBuffers;***/
+   driver->DrawBuffer = NULL;
+   driver->DrawBuffers = NULL;
    driver->FrontFace = NULL;
    driver->DepthFunc = NULL;
    driver->DepthMask = NULL;