net: pull CONFIG checks out of source and into makefile

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Ben Warren <biggerbadderben@gmail.com>

net/tftp.c

@@ -10,8 +10,6 @@
 #include "tftp.h"
 #include "bootp.h"
 
-#if defined(CONFIG_CMD_NET)
-
 #define WELL_KNOWN_PORT	69		/* Well known TFTP port #		*/
 #define TIMEOUT		5000UL		/* Millisecs to timeout for lost pkt */
 #ifndef	CONFIG_NET_RETRY_COUNT
@@ -690,5 +688,3 @@ static void parse_multicast_oack(char *pkt, int len)
 }
 
 #endif /* Multicast TFTP */
-
-#endif