Flaky TestTickSkip: Remove inherently flaky test

[rohit-nayak-ps]

Description

Removing test that is very dependent on elapsed and local time. Noticed because it fails occassionally in CI requiring the entire unit test workflow to be rerun. Fails consistently 1-3% of the time locally.

We are already testing the basic functionality elsewhere, so seemed a better option to remove than to try and fine tune the tolerance for the test.

Test has been around for 10 years, so backporting to supported versions.

Related Issue(s)

Checklist

• "Backport to:" labels have been added if this change should be back-ported to release branches
• If this change is to be back-ported to previous releases, a justification is included in the PR description
• Tests were added or are not required
• Did the new or modified tests pass consistently locally and on CI?
• Documentation was added or is not required

Deployment Notes

[vitess-bot]

Review Checklist

Hello reviewers! 👋 Please follow this checklist when reviewing this Pull Request.

General

• Ensure that the Pull Request has a descriptive title.
• Ensure there is a link to an issue (except for internal cleanup and flaky test fixes), new features should have an RFC that documents use cases and test cases.

Tests

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• vtctl command output order should be stable and awk-able.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 67.69%. Comparing base (694b02c) to head (003ccd9).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #17504   +/-   ##
=======================================
  Coverage   67.68%   67.69%           
=======================================
  Files        1584     1584           
  Lines      254505   254505           
=======================================
+ Hits       172255   172275   +20     
+ Misses      82250    82230   -20     

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