75b27212c4
The router service type extension's API definition was rehomed into neutron-lib with If9f7dfd246dded780761bcad83537985d0a22b52 This patch consumes it by removing the rehomed code and using the API definition with the APIExtensionDescriptor parent class. NeutronLibImpact Change-Id: I6a87dc5ce3e3891001a3f571b4676f5befbaabbb