Remove rpm-validation jenkins job in build repo

[Divyaasm]

Description

rpm-validation is now completely migrated to Validation Workflow.

Cleaning up the job and it's usage in the distribution-build workflows.

Issues Resolved

#4968

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
For more information on following Developer Certificate of Origin and signing off your commits, please check here.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.46%. Comparing base (5372fbb) to head (97615c2).
Report is 4 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #5040   +/-   ##
=======================================
  Coverage   92.46%   92.46%           
=======================================
  Files         197      197           
  Lines        6727     6727           
=======================================
  Hits         6220     6220           
  Misses        507      507           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[peterzhuamazon]

Instead of removing jenkins/rpm-validation/rpm-validation.jenkinsfile just put it into legacy dir like others.

[gaiksaya]

Instead of removing jenkins/rpm-validation/rpm-validation.jenkinsfile just put it into legacy dir like others.

I dont believe we have legacy for jenksinfiles, We can retrieve it anytime we want from old branches/tags.

[peterzhuamazon]

Instead of removing jenkins/rpm-validation/rpm-validation.jenkinsfile just put it into legacy dir like others.

I dont believe we have legacy for jenksinfiles, We can retrieve it anytime we want from old branches/tags.

We have legacy for docker files and others tho.

[gaiksaya]

Looks like we do have https://github.com/opensearch-project/opensearch-build/tree/main/jenkins/legacy
I feel its irrelevant but upon you if you want to keep it. Same goes for other legacy files. They wont ever be used and we can get if we want from tags or branches.

[peterzhuamazon]

Looks like we do have https://github.com/opensearch-project/opensearch-build/tree/main/jenkins/legacy I feel its irrelevant but upon you if you want to keep it. Same goes for other legacy files. They wont ever be used and we can get if we want from tags or branches.

I would say keep it and it is easier for users to check.

Hi @Divyaasm would you mind move it to legacy dir?

Thanks.