fix(edge) EE-1720 activate tunnel and remove proxy cache when needed (#5775)

Co-authored-by: Simon Meng <simon.meng@portainer.io>

api/http/handler/endpoints/endpoint_delete.go

@@ -49,7 +49,7 @@ func (handler *Handler) endpointDelete(w http.ResponseWriter, r *http.Request) *
 		return &httperror.HandlerError{http.StatusInternalServerError, "Unable to remove environment from the database", err}
 	}
 
-	handler.ProxyManager.DeleteEndpointProxy(endpoint)
+	handler.ProxyManager.DeleteEndpointProxy(endpoint.ID)
 
 	err = handler.DataStore.EndpointRelation().DeleteEndpointRelation(endpoint.ID)
 	if err != nil {