Remove seperate owner connection

[sancar]

Our other clients opens one connection to a node in cluster. Only C++ opens two connections two owner node. C++ code base needs to be updated and should be sync with other clients.

Also related code written to preserve backward compatibility on server side. (Client HeartBeat check )
should be updated accordingly after the fix.

Related issue leads to fix on server side hazelcast/hazelcast#5054
Related change on master hazelcast/hazelcast#7252
Related change on maintenance hazelcast/hazelcast#7253

[ihsandemir]

fixed by #392