rcmd.c: no need for stdio_ext.h

Signed-off-by: Peter S. Mazinger <ps.m@gmx.net>
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>

libc/inet/rpc/rcmd.c

@@ -76,7 +76,6 @@ static char sccsid[] = "@(#)rcmd.c	8.3 (Berkeley) 3/26/94";
 #include <pwd.h>
 #include <errno.h>
 #include <stdio.h>
-#include <stdio_ext.h>
 #include <ctype.h>
 #include <string.h>
 #include <libintl.h>