Remove deprecated NetconfSessionImpl

Change-Id: I92d9407ff4bc0c25ca7b998cc4f387c3f40f9ace
diff --git a/protocols/netconf/api/src/main/java/org/onosproject/netconf/config/NetconfDeviceConfig.java b/protocols/netconf/api/src/main/java/org/onosproject/netconf/config/NetconfDeviceConfig.java
index 28758b5..d9a3468 100644
--- a/protocols/netconf/api/src/main/java/org/onosproject/netconf/config/NetconfDeviceConfig.java
+++ b/protocols/netconf/api/src/main/java/org/onosproject/netconf/config/NetconfDeviceConfig.java
@@ -101,7 +101,7 @@
 
     /**
      * Gets the NETCONF SSH Client implementation.
-     * Expecting "apache-mina" or "ethz-ssh2"
+     * Expecting "apache-mina"
      *
      * @return sshClient
      */
@@ -192,7 +192,7 @@
 
     /**
      * Sets the NETCONF Ssh client implementation for the Device.
-     * Must be 'apache-mina' or 'ethz-ssh2'
+     * Must be 'apache-mina'
      * When specified, overrides NetconfControllerImpl.sshLibrary for this device
      *
      * @param sshimpl sshimpl as string