Revert "[MM-37013] Async job to fix CRT channel unreads (#18340)" (#19319)

This reverts commit 0da249c651.

i18n/en.json

@@ -7539,22 +7539,6 @@
     "id": "extract_content.worker.do_job.file_info",
     "translation": "Failed to get file information for content extraction."
   },
-  {
-    "id": "fix_crt_channel_unreads.worker.do_job.get_bad_channel_memberships",
-    "translation": "Failed to get bad channel memberships"
-  },
-  {
-    "id": "fix_crt_channel_unreads.worker.do_job.get_post_types",
-    "translation": "Failed to get unique post types"
-  },
-  {
-    "id": "fix_crt_channel_unreads.worker.do_job.kill_orphan_jobs",
-    "translation": "Killing orphaned jobs"
-  },
-  {
-    "id": "fix_crt_channel_unreads.worker.do_job.mark_channel_as_read",
-    "translation": "Failed to mark channel as read"
-  },
   {
     "id": "group_not_associated_to_synced_team",
     "translation": "Group cannot be associated to the channel until it is first associated to the parent group-synced team."