remove TCP_COOKIE_TRANSACTIONS from tcp.h

removed in linux-v3.10 in commit 1a2c6181c4a1922021b4d7df373bba612c3e5f04

include/netinet/tcp.h

@@ -17,7 +17,6 @@
 #define	TCP_QUICKACK	 12
 #define TCP_CONGESTION	 13
 #define TCP_MD5SIG	 14
-#define TCP_COOKIE_TRANSACTIONS 15
 #define TCP_THIN_LINEAR_TIMEOUTS 16
 #define TCP_THIN_DUPACK  17
 #define TCP_USER_TIMEOUT 18