Removed inclusion of stdio.h as it causes a build error under one of my gccs

reactos/drivers/lib/oskittcp/oskittcp

diff -u -r1.16 -r1.17
--- interface.c	21 Nov 2004 20:54:52 -0000	1.16
+++ interface.c	29 Nov 2004 04:10:31 -0000	1.17
@@ -1,4 +1,3 @@

-#include <stdio.h>

 #include <oskittcp.h>
 #include <oskitdebug.h>
 #include <sys/param.h>