diff --git a/lib/neutron_plugins/ofagent_agent b/lib/neutron_plugins/ofagent_agent
index 55f3f72..90b37f1 100644
--- a/lib/neutron_plugins/ofagent_agent
+++ b/lib/neutron_plugins/ofagent_agent
@@ -18,7 +18,6 @@
     # This agent uses ryu to talk with switches
     install_package $(get_packages "ryu")
     install_ryu
-    configure_ryu
 }
 
 function neutron_plugin_configure_debug_command {
diff --git a/lib/neutron_plugins/ryu b/lib/neutron_plugins/ryu
deleted file mode 100644
index f45a797..0000000
--- a/lib/neutron_plugins/ryu
+++ /dev/null
@@ -1,79 +0,0 @@
-# Neutron Ryu plugin
-# ------------------
-
-# Save trace setting
-RYU_XTRACE=$(set +o | grep xtrace)
-set +o xtrace
-
-source $TOP_DIR/lib/neutron_plugins/ovs_base
-source $TOP_DIR/lib/neutron_thirdparty/ryu      # for configuration value
-
-function neutron_plugin_create_nova_conf {
-    _neutron_ovs_base_configure_nova_vif_driver
-    iniset $NOVA_CONF DEFAULT libvirt_ovs_integration_bridge "$OVS_BRIDGE"
-}
-
-function neutron_plugin_install_agent_packages {
-    _neutron_ovs_base_install_agent_packages
-
-    # neutron_ryu_agent requires ryu module
-    install_package $(get_packages "ryu")
-    install_ryu
-    configure_ryu
-}
-
-function neutron_plugin_configure_common {
-    Q_PLUGIN_CONF_PATH=etc/neutron/plugins/ryu
-    Q_PLUGIN_CONF_FILENAME=ryu.ini
-    Q_PLUGIN_CLASS="neutron.plugins.ryu.ryu_neutron_plugin.RyuNeutronPluginV2"
-}
-
-function neutron_plugin_configure_debug_command {
-    _neutron_ovs_base_configure_debug_command
-    iniset $NEUTRON_TEST_CONFIG_FILE DEFAULT ryu_api_host $RYU_API_HOST:$RYU_API_PORT
-}
-
-function neutron_plugin_configure_dhcp_agent {
-    iniset $Q_DHCP_CONF_FILE DEFAULT ryu_api_host $RYU_API_HOST:$RYU_API_PORT
-}
-
-function neutron_plugin_configure_l3_agent {
-    iniset $Q_L3_CONF_FILE DEFAULT ryu_api_host $RYU_API_HOST:$RYU_API_PORT
-    _neutron_ovs_base_configure_l3_agent
-}
-
-function neutron_plugin_configure_plugin_agent {
-    # Set up integration bridge
-    _neutron_ovs_base_setup_bridge $OVS_BRIDGE
-    if [ -n "$RYU_INTERNAL_INTERFACE" ]; then
-        sudo ovs-vsctl --no-wait -- --may-exist add-port $OVS_BRIDGE $RYU_INTERNAL_INTERFACE
-    fi
-    iniset /$Q_PLUGIN_CONF_FILE ovs integration_bridge $OVS_BRIDGE
-    AGENT_BINARY="$NEUTRON_DIR/neutron/plugins/ryu/agent/ryu_neutron_agent.py"
-
-    _neutron_ovs_base_configure_firewall_driver
-}
-
-function neutron_plugin_configure_service {
-    iniset /$Q_PLUGIN_CONF_FILE ovs openflow_rest_api $RYU_API_HOST:$RYU_API_PORT
-
-    _neutron_ovs_base_configure_firewall_driver
-}
-
-function neutron_plugin_setup_interface_driver {
-    local conf_file=$1
-    iniset $conf_file DEFAULT interface_driver neutron.agent.linux.interface.OVSInterfaceDriver
-    iniset $conf_file DEFAULT ovs_use_veth True
-}
-
-function has_neutron_plugin_security_group {
-    # 0 means True here
-    return 0
-}
-
-function neutron_plugin_check_adv_test_requirements {
-    is_service_enabled q-agt && is_service_enabled q-dhcp && return 0
-}
-
-# Restore xtrace
-$RYU_XTRACE
diff --git a/lib/neutron_thirdparty/ryu b/lib/neutron_thirdparty/ryu
index 233f3aa..eaf088b 100644
--- a/lib/neutron_thirdparty/ryu
+++ b/lib/neutron_thirdparty/ryu
@@ -1,56 +1,15 @@
-# Ryu OpenFlow Controller
-# -----------------------
+# Ryu SDN Framework
+# -----------------
+
+# Used by ofagent.
+# TODO(yamamoto): Switch to pip_install once the development was settled
 
 # Save trace setting
 RYU3_XTRACE=$(set +o | grep xtrace)
 set +o xtrace
 
-
 RYU_DIR=$DEST/ryu
-# Ryu API Host
-RYU_API_HOST=${RYU_API_HOST:-127.0.0.1}
-# Ryu API Port
-RYU_API_PORT=${RYU_API_PORT:-8080}
-# Ryu OFP Host
-RYU_OFP_HOST=${RYU_OFP_HOST:-127.0.0.1}
-# Ryu OFP Port
-RYU_OFP_PORT=${RYU_OFP_PORT:-6633}
-# Ryu Applications
-RYU_APPS=${RYU_APPS:-ryu.app.simple_isolation,ryu.app.rest}
 
-function configure_ryu {
-    :
-}
-
-function init_ryu {
-    RYU_CONF_DIR=/etc/ryu
-    if [[ ! -d $RYU_CONF_DIR ]]; then
-        sudo mkdir -p $RYU_CONF_DIR
-    fi
-    sudo chown $STACK_USER $RYU_CONF_DIR
-    RYU_CONF=$RYU_CONF_DIR/ryu.conf
-    sudo rm -rf $RYU_CONF
-
-    # Ryu configuration
-    RYU_CONF_CONTENTS=${RYU_CONF_CONTENTS:-"[DEFAULT]
-app_lists=$RYU_APPS
-wsapi_host=$RYU_API_HOST
-wsapi_port=$RYU_API_PORT
-ofp_listen_host=$RYU_OFP_HOST
-ofp_tcp_listen_port=$RYU_OFP_PORT
-neutron_url=http://$Q_HOST:$Q_PORT
-neutron_admin_username=$Q_ADMIN_USERNAME
-neutron_admin_password=$SERVICE_PASSWORD
-neutron_admin_tenant_name=$SERVICE_TENANT_NAME
-neutron_admin_auth_url=$KEYSTONE_SERVICE_PROTOCOL://$KEYSTONE_SERVICE_HOST:$KEYSTONE_AUTH_PORT/v2.0
-neutron_auth_strategy=$Q_AUTH_STRATEGY
-neutron_controller_addr=tcp:$RYU_OFP_HOST:$RYU_OFP_PORT
-"}
-    echo "${RYU_CONF_CONTENTS}" > $RYU_CONF
-}
-
-# install_ryu can be called multiple times as neutron_pluing/ryu may call
-# this function for neutron-ryu-agent
 # Make this function idempotent and avoid cloning same repo many times
 # with RECLONE=yes
 _RYU_INSTALLED=${_RYU_INSTALLED:-False}
@@ -63,17 +22,5 @@
     fi
 }
 
-function start_ryu {
-    run_process ryu "$RYU_DIR/bin/ryu-manager --config-file $RYU_CONF"
-}
-
-function stop_ryu {
-    :
-}
-
-function check_ryu {
-    :
-}
-
 # Restore xtrace
 $RYU3_XTRACE