chore: Drop validate pipeline (#250)

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**Description**

The existing `validate_pipeline_status.sh` script is meaningless, it
checks the latest commit in `main` branch, and expects the status to be
`success`, however, a different status doesn't mean it should block
release. Drop this script since no other module release use such
validation.

**Related issue(s)**
<!-- If you refer to a particular issue, provide its number. For
example, `Resolves #123`, `Fixes #43`, or `See also #33`. -->

.github/workflows/create-release.yml

@@ -27,8 +27,6 @@ jobs:
           fetch-depth: 0
       - name: Validate the release tag
         run: ./validate_release_tag.sh ${{ github.event.inputs.name }}
-      - name: Validate pipeline status
-        run: ./validate_pipeline_status.sh ${{ github.ref_name }}
 
   draft-release:
     name: Draft release