Remove nodejs on turtl removal

src/freedombone-app-turtl

     remove_onion_service turtlapi ${TURTL_API_ONION_PORT}
     function_check remove_ddns_domain
     remove_ddns_domain $TURTL_DOMAIN_NAME
+    remove_nodejs turtl
     rm -rf /etc/rethinkdb
     rm -rf /var/lib/rethinkdb
     rm -rf $TURTL_BASE_DIR