sink(ticdc): remove pulsar sink

[Rustin170506]

What problem does this PR solve?

Issue Number: close #7087

What is changed and how it works?

remove pulsar sink.

Check List

Tests

• Unit test

Questions

Will it cause performance regression or break compatibility?

No

Do you need to update user documentation, design documentation or monitoring documentation?

See: pingcap/docs-cn#11112

Release note

Delete the deprecated pulsar sink

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• asddongmen
• nongfushanquan

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[Rustin170506]

/hold

PLEASE DO NOT MERGE THIS PR.

[Rustin170506]

Self check

[codecov-commenter]

Codecov Report

Merging #6983 (18fd806) into master (9398176) will decrease coverage by 0.0072%.
The diff coverage is 71.5686%.

Additional details and impacted files

Flag	Coverage Δ
cdc	67.2290% <94.7368%> (+0.0330%)	⬆️
dm	51.8290% <25.0000%> (-0.1189%)	⬇️
engine	62.4889% <73.3727%> (+0.2267%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

@@               Coverage Diff                @@
##             master      #6983        +/-   ##
================================================
- Coverage   59.8253%   59.8180%   -0.0073%     
================================================
  Files           791        787         -4     
  Lines         90221      90242        +21     
================================================
+ Hits          53975      53981         +6     
- Misses        31498      31512        +14     
- Partials       4748       4749         +1     

[Rustin170506]

/unhold

[zier-one]

LGTM

[Rustin170506]

/merge

[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: efddb1e

[ti-chi-bot]

@hi-rustin: Your PR was out of date, I have automatically updated it for you.

At the same time I will also trigger all tests for you:

/run-all-tests

If the CI test fails, you just re-trigger the test that failed and the bot will merge the PR for you after the CI passes.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the ti-community-infra/tichi repository.