Just remove the dang #warning, it's going to be removed as soon as

I convert to vmb.h anyway.



git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@4839 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/varnishd/common.h

@@ -83,6 +83,5 @@ const void *pick(const struct choice *cp, const char *which, const char *kind);
 #include <machine/atomic.h>
 #define MEMORY_BARRIER()       mb()
 #else
-#warning "MEMORY_BARRIER() is expensive"
 #define MEMORY_BARRIER()       close(-1)
 #endif