i965: Remove assert about NV_vp now that it somewhat works.

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

@@ -90,8 +90,6 @@ static void brw_upload_vs_prog(struct brw_context *brw)
    struct brw_vertex_program *vp = 
       (struct brw_vertex_program *)brw->vertex_program;
 
-   assert (vp && !vp->program.IsNVProgram);
-   
    memset(&key, 0, sizeof(key));
 
    /* Just upload the program verbatim for now.  Always send it all