callbacks: add proper custom git callback

endpoints/api/trigger.py

@@ -20,7 +20,6 @@ from data import model
 from auth.permissions import UserAdminPermission, AdministerOrganizationPermission, ReadRepositoryPermission
 from util.names import parse_robot_username
 from util.dockerfileparse import parse_dockerfile
-from util.ssh import generate_ssh_keypair
 
 
 logger = logging.getLogger(__name__)
@@ -509,12 +508,3 @@ class BuildTriggerSources(RepositoryParamResource):
       }
     else:
       raise Unauthorized()
-
-@resource('/v1/repository/<repopath:repository>/trigger/redirect')
-@path_param('repository', 'The full path of the repository. e.g. namespace/name')
-@internal_only
-class CustomBuildTriggerRedirect(RepositoryParamResource):
-  """ Custom verb to properly handle redirecting users using their own custom git hook. """
-  @nickname('customTriggerRedirect')
-  def get(self, namespace, repository):
-    pass