Remove libcwrapper usage from xorg server modules. The libcwrapper is only

of (marginal) use in the drivers, and that usage remains.

include/os.h

@@ -55,11 +55,7 @@ SOFTWARE.
 #define ALLOCATE_LOCAL_FALLBACK(_size) Xalloc((unsigned long)(_size))
 #define DEALLOCATE_LOCAL_FALLBACK(_ptr) Xfree((pointer)(_ptr))
 #include <X11/Xalloca.h>
-#ifndef IN_MODULE
 #include <stdarg.h>
-#else
-#include "xf86_ansic.h"
-#endif
 
 #define NullFID ((FID) 0)