Update README.md

Author: bluestar

README.md

@@ -15,7 +15,6 @@ ANS(accelerated network stack) is porting from [FreeBSD](http://freebsd.org) TCP
 Support environment
   - EAL is based on dpdk-16.07;
   - Development enviroment is based on x86_64-native-linuxapp-gcc;
-  - TCP/IP stack is based on FreeBSD 10.0-RELEASE;
   - linux version：
 4.4.0-45-generic (Ubuntu 16.04.1 LTS).
   - gcc version：