Revert "BUG-632: fix netty binding"

This reverts commit 75c79d987a462ec9ce79bbb5fbf34a09c883391f.

Conflicts:
	tcp-md5/netty/src/main/java/org/opendaylight/bgpcep/tcpmd5/netty/MD5NioServerSocketChannel.java
	tcp-md5/netty/src/main/java/org/opendaylight/bgpcep/tcpmd5/netty/MD5NioSocketChannel.java

Change-Id: Iac253be4e0c65c9befa9a3e9787cd50b3fad8eed
Signed-off-by: Robert Varga <rovarga@cisco.com>