diff --git a/swh/scheduler/sql/50-swh-data.sql b/swh/scheduler/sql/50-swh-data.sql
--- a/swh/scheduler/sql/50-swh-data.sql
+++ b/swh/scheduler/sql/50-swh-data.sql
@@ -106,71 +106,6 @@
        type,
        description,
        backend_name,
-       default_interval, min_interval, max_interval, backoff_factor)
-values (
-       'list-bitbucket-incremental',
-       'Incrementally list BitBucket',
-       'swh.lister.bitbucket.tasks.IncrementalBitBucketLister',
-       '1 day',
-       '1 day',
-       '1 day', 1);
-
-insert into task_type(
-       type,
-       description,
-       backend_name,
-       default_interval, min_interval, max_interval, backoff_factor)
-values (
-       'list-bitbucket-full',
-       'Full update of Bitbucket repos list',
-       'swh.lister.bitbucket.tasks.FullBitBucketRelister',
-       '90 days',
-       '90 days',
-       '90 days', 1);
-
-insert into task_type(
-       type,
-       description,
-       backend_name,
-       default_interval, min_interval, max_interval, backoff_factor)
-values (
-       'list-github-incremental',
-       'Incrementally list GitHub',
-       'swh.lister.github.tasks.IncrementalGitHubLister',
-       '1 day',
-       '1 day',
-       '1 day', 1);
-
-insert into task_type(
-       type,
-       description,
-       backend_name,
-       default_interval, min_interval, max_interval, backoff_factor)
-values (
-       'list-github-full',
-       'Full update of GitHub repos list',
-       'swh.lister.github.tasks.FullGitHubRelister',
-       '90 days',
-       '90 days',
-       '90 days', 1);
-
-insert into task_type(
-       type,
-       description,
-       backend_name,
-       default_interval, min_interval, max_interval, backoff_factor)
-values (
-       'list-debian-distribution',
-       'List a Debian distribution',
-       'swh.lister.debian.tasks.DebianListerTask',
-       '1 day',
-       '1 day',
-       '1 day', 1);
-
-insert into task_type(
-       type,
-       description,
-       backend_name,
        default_interval, min_interval, max_interval, backoff_factor,
        max_queue_length, num_retries, retry_delay)
 values (
@@ -184,45 +119,6 @@
        type,
        description,
        backend_name,
-       default_interval, min_interval, max_interval, backoff_factor)
-values (
-       'list-gitlab-incremental',
-       'Incrementally list a Gitlab instance',
-       'swh.lister.gitlab.tasks.IncrementalGitLabLister',
-       '1 day',
-       '1 day',
-       '1 day', 1);
-
-insert into task_type(
-       type,
-       description,
-       backend_name,
-       default_interval, min_interval, max_interval, backoff_factor)
-values (
-       'list-gitlab-full',
-       'Full update of a Gitlab instance''s repos list',
-       'swh.lister.gitlab.tasks.FullGitLabRelister',
-       '90 days',
-       '90 days',
-       '90 days', 1);
-
-insert into task_type(
-       type,
-       description,
-       backend_name,
-       default_interval, min_interval, max_interval, backoff_factor)
-values (
-       'list-pypi',
-       'Full pypi lister',
-       'swh.lister.pypi.tasks.PyPIListerTask',
-       '1 days',
-       '1 days',
-       '1 days', 1);
-
-insert into task_type(
-       type,
-       description,
-       backend_name,
        default_interval, min_interval, max_interval, backoff_factor,
        max_queue_length)
 values (
@@ -328,19 +224,6 @@
        type,
        description,
        backend_name,
-       default_interval, min_interval, max_interval, backoff_factor)
-values (
-       'list-npm-full',
-       'Full npm lister',
-       'swh.lister.npm.tasks.NpmListerTask',
-       '1 week',
-       '1 week',
-       '1 week', 1);
-
-insert into task_type(
-       type,
-       description,
-       backend_name,
        default_interval, min_interval, max_interval, backoff_factor,
        max_queue_length)
 values (
@@ -354,58 +237,6 @@
        type,
        description,
        backend_name,
-       default_interval, min_interval, max_interval, backoff_factor)
-values (
-       'list-gnu-full',
-       'Full gnu lister',
-       'swh.lister.gnu.tasks.GNUListerTask',
-       '90 days',
-       '90 days',
-       '90 days', 1);
-
-insert into task_type(
-       type,
-       description,
-       backend_name,
-       default_interval, min_interval, max_interval, backoff_factor)
-values (
-       'list-phabricator-full',
-       'Full Phabricator instance lister',
-       'swh.lister.phabricator.tasks.FullPhabricatorLister',
-       '90 days',
-       '90 days',
-       '90 days', 1);
-
-insert into task_type(
-       type,
-       description,
-       backend_name,
-       default_interval, min_interval, max_interval, backoff_factor)
-values (
-       'list-phabricator-incremental',
-       'Incremental Phabricator instance lister',
-       'swh.lister.phabricator.tasks.IncrementalPhabricatorLister',
-       '1 week',
-       '1 week',
-       '1 week', 1);
-
-insert into task_type(
-       type,
-       description,
-       backend_name,
-       default_interval, min_interval, max_interval, backoff_factor)
-values (
-       'list-cgit',
-       'CGit instance lister',
-       'swh.lister.cgit.tasks.CGitListerTask',
-       '64 days',
-       '64 days',
-       '64 days', 1);
-
-insert into task_type(
-       type,
-       description,
-       backend_name,
        default_interval, min_interval, max_interval, backoff_factor, num_retries)
 values (
        'load-tar',