[NA] [INFRA] fix: remove the Quickstart Guide workflow left behind by the Python E2E retirement

[theluckystrike]

Details

The scheduled Quickstart Guide Snippets Tests workflow has failed every day since #4731 retired the Python E2E tests. It still runs pytest -s tests/QuickstartGuide inside tests_end_to_end, and that folder now holds only the TypeScript suite, so pytest stops with "file or directory not found" and exit code 4 (latest run https://github.com/comet-ml/opik/actions/runs/38050796753). #4731 removed end2end_suites.yml and the Python linter workflow for the same reason, and this one looks like it was missed, so this PR deletes it.

If you'd rather move the quickstart snippets to the TypeScript suite, I'll close this one.

Change checklist

• User facing
• Documentation update

Issues

• None

AI-WATERMARK

AI-WATERMARK: yes

• If yes:
  • Tools: Claude Code
  • Model(s): Claude
  • Scope: removal of one workflow file
  • Human verification: checked that no file on main matches tests/QuickstartGuide, that the run history fails daily since January, and that no other workflow calls this one

Testing

• No code change. The deleted workflow only runs on its daily schedule and by manual dispatch.

Michael