Remove unusable sitemap endpoint

It calls a data model method which is extremely slow and heavy, and it isn't even used anyway

data/model/repository.py

@@ -655,17 +655,6 @@ def confirm_email_authorization_for_repo(code):
   return found
 
 
-def list_popular_public_repos(action_count_threshold, time_span, repo_kind='image'):
-  cutoff = datetime.now() - time_span
-  return (Repository.select(Namespace.username, Repository.name)
-          .join(Namespace, on=(Repository.namespace_user == Namespace.id)).switch(Repository)
-          .join(RepositoryActionCount).where(RepositoryActionCount.date >= cutoff,
-                                             Repository.visibility == get_public_repo_visibility(),
-                                             Repository.kind == Repository.kind.get_id(repo_kind))
-          .group_by(RepositoryActionCount.repository, Repository.name, Namespace.username)
-          .having(fn.Sum(RepositoryActionCount.count) >= action_count_threshold).tuples())
-
-
 def is_empty(namespace_name, repository_name):
   """ Returns if the repository referenced by the given namespace and name is empty. If the repo
       doesn't exist, returns True.

data/model/test/test_repository.py

@@ -46,9 +46,3 @@ def test_search_pagination(query, authed_username, initialized_db):
   next_repos = get_filtered_matching_repositories(query, filter_username=authed_username, offset=1)
   assert repositories[0].id != next_repos[0].id
   assert repositories[1].id == next_repos[0].id
-
-
-def test_popular_repo_list(initialized_db):
-  onlypublic = model.repository.list_popular_public_repos(0, timedelta(weeks=1))
-  assert len(onlypublic) == 1
-  assert onlypublic[0] == ('public', 'publicrepo')

endpoints/web.py

@@ -332,15 +332,6 @@ def robots():
   return robots_txt
 
 
-@web.route('/sitemap.xml', methods=['GET'])
-def sitemap():
-  popular_repo_tuples = model.repository.list_popular_public_repos(50, timedelta(weeks=1))
-  xml = make_response(render_template('sitemap.xml', public_repos=popular_repo_tuples,
-                                      baseurl=get_app_url()))
-  xml.headers['Content-Type'] = 'application/xml'
-  return xml
-
-
 @web.route('/buildlogs/<build_uuid>', methods=['GET'])
 @route_show_if(features.BUILD_SUPPORT)
 @process_auth_or_cookie

test/test_endpoints.py

@@ -228,9 +228,6 @@ class WebEndpointTestCase(EndpointTestCase):
   def test_robots(self):
     self.getResponse('web.robots')
 
-  def test_sitemap(self):
-    self.getResponse('web.sitemap')
-
   def test_repo_view(self):
     self.getResponse('web.repository', path='devtable/simple')