diff --git a/swh/lister/github/generate_tasks.py b/swh/lister/github/generate_tasks.py
deleted file mode 100644
index 1184b73..0000000
--- a/swh/lister/github/generate_tasks.py
+++ /dev/null
@@ -1,111 +0,0 @@
-# Copyright (C) 2015  The Software Heritage developers
-# See the AUTHORS file at the top-level directory of this distribution
-# License: GNU General Public License version 3, or any later version
-# See top-level LICENSE file for more information
-
-import psycopg2
-import pickle
-
-
-def list_imported_repos(swh_db):
-    """List all the repositories that have been successfully imported in Software
-    Heritage.
-    """
-    query = """
-    select o.url
-    from origin o
-    left join fetch_history fh
-    on o.id = fh.origin
-    where
-        fh.status = true and
-        o.url ~~ 'https://github.com/%'
-    """
-
-    cur = swh_db.cursor()
-    cur.execute(query)
-    res = cur.fetchall()
-    cur.close()
-    return set('/'.join(repo.rsplit('/', 2)[-2:]) for (repo,) in res)
-
-
-def list_fetched_repos(ghlister_db):
-    """List all the repositories that have been successfully fetched from GitHub.
-    """
-    query = """
-    select r.full_name
-    from crawl_history ch
-    left join repos r
-    on ch.repo = r.id
-    where
-        ch.status = true and
-        r.fork = false
-    """
-
-    cur = ghlister_db.cursor()
-    cur.execute(query)
-    res = cur.fetchall()
-    cur.close()
-    return set(repo for (repo,) in res)
-
-
-def list_missing_repos():
-    """List all the repositories that have not yet been imported successfully."""
-    swh_db = psycopg2.connect('service=softwareheritage')
-    imported_repos = list_imported_repos(swh_db)
-    swh_db.close()
-
-    ghlister_db = psycopg2.connect('service=lister-github')
-    fetched_repos = list_fetched_repos(ghlister_db)
-    ghlister_db.close()
-
-    return fetched_repos - imported_repos
-
-
-def generate_tasks(checkpoint_file='repos', checkpoint_every=100000):
-    """Generate the Celery tasks to fetch all the missing repositories.
-
-    Checkpoint the missing repositories every checkpoint_every tasks sent, in a
-    pickle file called checkpoint_file.
-
-    If the checkpoint file exists, we do not call the database again but load
-    from the file.
-    """
-    import swh.loader.git.tasks
-    from swh.core.worker import app  # flake8: noqa for side effects
-
-    def checkpoint_repos(repos, checkpoint=checkpoint_file):
-        tmp = '.%s.tmp' % checkpoint
-        with open(tmp, 'wb') as f:
-            pickle.dump(repos, f)
-
-        os.rename(tmp, checkpoint)
-
-    def fetch_checkpoint_repos(checkpoint=checkpoint_file):
-        with open(checkpoint, 'rb') as f:
-            return pickle.load(f)
-
-    repos = set()
-
-    if not os.path.exists(checkpoint_file):
-        repos = list_missing_repos()
-        checkpoint_repos(repos)
-    else:
-        repos = fetch_checkpoint_repos()
-
-    task = app.tasks['swh.loader.git.tasks.LoadGitHubRepository']
-
-    ctr = 0
-    while True:
-        try:
-            repo = repos.pop()
-        except KeyError:
-            break
-
-        task.delay(repo)
-
-        ctr += 1
-        if ctr >= checkpoint_every:
-            ctr = 0
-            checkpoint_repos(repos)
-
-    os.unlink(checkpoint)