code: func FilterUnsupportedCapabilities(list *capability.List) {
  	for _, c := range UnsupportedCapabilities {
  		list.Delete(c)
  	}
  }
docs: // FilterUnsupportedCapabilities it filter out all the UnsupportedCapabilities
  // from a capability.List, the intended usage is on the client implementation
  // to filter the capabilities from an AdvRefs message.