fixed two other memory leaks

src/charon/config/peer_cfg.c

@@ -449,11 +449,7 @@ static bool is_mediation(private_peer_cfg_t *this)
  */
 static peer_cfg_t* get_mediated_by(private_peer_cfg_t *this)
 {
-	if (this->mediated_by) {
-		this->mediated_by->get_ref(this->mediated_by);
-		return this->mediated_by;
-	}
-	return NULL;
+	return this->mediated_by;
 }
 
 /**

src/charon/config/peer_cfg.h

@@ -303,7 +303,7 @@ struct peer_cfg_t {
 	/**
 	 * Get peer_cfg of the connection this one is mediated through.
 	 * 
-	 * @return				reference to peer_cfg of the mediation connection
+	 * @return				the peer_cfg of the mediation connection
 	 */
 	peer_cfg_t* (*get_mediated_by) (peer_cfg_t *this);