ODE-987. Remove unused *Channel classes

git-svn-id: https://svn.apache.org/repos/asf/ode/trunk@1434551 13f79535-47bb-0310-9956-ffa450edef68
ODE-987. Remove the use SynchChannel

git-svn-id: https://svn.apache.org/repos/asf/ode/trunk@1434552 13f79535-47bb-0310-9956-ffa450edef68