Revert "Initial code drop of Netty.io integration"

This reverts commit a4ae8226e393810117fb989bccff78f92c98ab71.

Conflicts:
	tcp-md5/netty/pom.xml
	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
	tcp-md5/netty/src/main/java/org/opendaylight/bgpcep/tcpmd5/netty/ProxyMD5ServerSocketChannelConfig.java
	tcp-md5/netty/src/main/java/org/opendaylight/bgpcep/tcpmd5/netty/ProxyMD5SocketChannelConfig.java

Change-Id: I0001e7543d6e6214248dc4204499420e9c7a9576
Signed-off-by: Robert Varga <rovarga@cisco.com>
Revert "Initial support for RFC2385"

This reverts commit 7c713a81010775845206cfbfc411ea6332d2d1e3.

Conflicts:
	tcp-md5/core/src/main/java/org/opendaylight/bgpcep/tcpmd5/MD5ChannelOptions.java
	tcp-md5/jni/pom.xml
	tcp-md5/pom.xml

Change-Id: Id7e45f54314b8f5cfaf8c95fe9c682280cd03eda
Signed-off-by: Robert Varga <rovarga@cisco.com>