Get rid of definitions of ntohll and htonll that were broken on FreeBSD.

These macros were never used anywhere in iperf3 anyways, and
conflicted with macro definitions that were in FreeBSD's system
headers.

Bump copyright date and add a comment to inclusion guard while here.

src/net.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2009-2011, The Regents of the University of California,
+ * Copyright (c) 2009-2014, The Regents of the University of California,
  * through Lawrence Berkeley National Laboratory (subject to receipt of any
  * required approvals from the U.S. Dept. of Energy).  All rights reserved.
  *
@@ -24,34 +24,4 @@ int getsockdomain(int sock);
 #define NET_SOFTERROR -1
 #define NET_HARDERROR -2
 
-unsigned long long htonll(unsigned long long);
-unsigned long long ntohll(unsigned long long);
-
-/* XXX: Need a better check for byte order */
-#if BYTE_ORDER == BIG_ENDIAN
-#define HTONLL(n) (n)
-#define NTOHLL(n) (n)
-#else
-#define HTONLL(n) ((((unsigned long long)(n) & 0xFF) << 56) | \
-                   (((unsigned long long)(n) & 0xFF00) << 40) | \
-                   (((unsigned long long)(n) & 0xFF0000) << 24) | \
-                   (((unsigned long long)(n) & 0xFF000000) << 8) | \
-                   (((unsigned long long)(n) & 0xFF00000000) >> 8) | \
-                   (((unsigned long long)(n) & 0xFF0000000000) >> 24) | \
-                   (((unsigned long long)(n) & 0xFF000000000000) >> 40) | \
-                   (((unsigned long long)(n) & 0xFF00000000000000) >> 56))
-
-#define NTOHLL(n) ((((unsigned long long)(n) & 0xFF) << 56) | \
-                   (((unsigned long long)(n) & 0xFF00) << 40) | \
-                   (((unsigned long long)(n) & 0xFF0000) << 24) | \
-                   (((unsigned long long)(n) & 0xFF000000) << 8) | \
-                   (((unsigned long long)(n) & 0xFF00000000) >> 8) | \
-                   (((unsigned long long)(n) & 0xFF0000000000) >> 24) | \
-                   (((unsigned long long)(n) & 0xFF000000000000) >> 40) | \
-                   (((unsigned long long)(n) & 0xFF00000000000000) >> 56))
-#endif
-
-#define htonll(n) HTONLL(n)
-#define ntohll(n) NTOHLL(n)
-
-#endif
+#endif /* __NET_H */