inet: remove tcp_debug from netinet/tcp_debug.h

It was a hack only needed for trpt, which can just define it locally.

This makes it possible to fix up systat which also includes the file.

Sponsored by:	Rubicon Communications, LLC ("Netgate")

sys/netinet/tcp_debug.h

@@ -73,10 +73,4 @@ static const char	*tanames[] =
 
 #define	TCP_NDEBUG 100
 
-#ifndef _KERNEL
-/* XXX common variables for broken applications. */
-struct	tcp_debug tcp_debug[TCP_NDEBUG];
-int	tcp_debx;
-#endif
-
 #endif /* !_NETINET_TCP_DEBUG_H_ */

usr.sbin/trpt/trpt.c

@@ -85,6 +85,9 @@ __FBSDID("$FreeBSD$");
 #include <string.h>
 #include <unistd.h>
 
+static struct  tcp_debug tcp_debug[TCP_NDEBUG];
+static int     tcp_debx;
+
 static struct nlist nl[3];
 #define	N_TCP_DEBUG	0
 #define	N_TCP_DEBX	1