Remove expiration dates from Deleted domains

[h-m-f-t]

Issue description

In #2823, we updated the process to remove domains from the registry, giving them a tombstone called the Deleted statue, and making it so newly-deleted domain have their expiration date removed. In this issue, we should remove the expiration date from domains that are currently Deleted from stable(that were put there before we updated the process).

Acceptance criteria

• Remove the expiration date from all domains that are currently in Deleted state on stable

Additional context

no PR is needed, this can just be done by ssh-ing into stable and clearing the expiration date on those domains. (by clearing I mean doing domain.expiration_date = ""
See #2823 (comment) for more context.

Links to other issues

• ⛔ blocked by Update delete domain process to remove hosts and/or contacts #2823

[PaulKuykendall]

In a working session with Gina, we decided to accept this ticket since its dependency has already been completed. This looks like relatively low effort, housekeeping.

Sliding for sprint 61, since sprint 60 is already committed, and change status to Ready

[erinysong]

Removed expiration dates for deleted domains on our staging database first and wanted to verify the results on our staging Domains table match the desired change. If so, we can do the same change on our stable data

[h-m-f-t]

@erinysong, check out this link in the duplicate issue above ☝ . On a quick review, this looks like the same set of domains (it is the same number).

[erinysong]

Noted, thank you for bringing the duplicate issue to attention! Are we comfortable implementing the same change to our stable db then? It'd be the same queries run on stable instead of staging and just wanted to confirm before modifying stable data

[erinysong]

Queries and resulting data got looked over and ok'ed by @abroddrick - will run this on stable

[erinysong]

Expiration date removed from all deleted domains on stable