JavaDoc fixes

src/main/java/net/schmizz/sshj/connection/ConnectionImpl.java

@@ -64,7 +64,6 @@ public class ConnectionImpl
     /**
      * Create with an associated {@link Transport}.
      *
-     * @param config the ssh config
      * @param trans transport layer
      * @param keepAlive the keep alive provider
      */

src/main/java/net/schmizz/sshj/transport/kex/Curve25519DH.java

@@ -45,7 +45,7 @@ public class Curve25519DH extends DHBase {
 
     /**
      * TODO want to figure out why BouncyCastle does not work.
-     * @return
+     * @return The initialized curve25519 parameter spec
      */
     public static AlgorithmParameterSpec getCurve25519Params() {
         X9ECParameters ecP = CustomNamedCurves.getByName("curve25519");