ttl: remove TTL job when the table has been dropped (#51541)

[ti-chi-bot]

This is an automated cherry-pick of #51541

What problem does this PR solve?

Issue Number: close #51540

Problem Summary:

What changed and how does it work?

1. Finish the job when the table is no longer a TTL table (or has been dropped).
2. GC will also remove tidb_ttl_table_status when the table is no longer a TTL table (or has been dropped).

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No need to test

  • I checked and no code files have been changed.

Side effects

• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Breaking backward compatibility

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Changes MySQL compatibility

Release note

None

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (release-7.1@a8b650f). Click here to learn what that means.
The diff coverage is 72.2222%.

Additional details and impacted files

@@               Coverage Diff                @@
##             release-7.1     #51620   +/-   ##
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  Coverage               ?   73.4437%           
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  Files                  ?       1212           
  Lines                  ?     379571           
  Branches               ?          0           
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  Hits                   ?     278771           
  Misses                 ?      83002           
  Partials               ?      17798           

[YangKeao]

LGTM

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: lcwangchao, YangKeao

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• OWNERS [YangKeao,lcwangchao]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-03-08 08:18:32.419355582 +0000 UTC m=+414339.441601971: ☑️ agreed by lcwangchao.
• 2024-03-08 08:46:57.080041622 +0000 UTC m=+416044.102288009: ☑️ agreed by YangKeao.