Jobs: remove opening job position

[benjaoming]

Well, the punishment for a quick fix is pretty high here :disappointed:

/home/docs/checkouts/readthedocs.org/user_builds/readthedocs-blog/checkouts/210/embed-api-v3.rst:66: WARNING: undefined label: 'readthedocs:guides/embedding-content:embedding content from your documentation'
/home/docs/checkouts/readthedocs.org/user_builds/readthedocs-blog/checkouts/210/sphinx-4-4-release-other-ecosystem-news.rst:66: WARNING: undefined label: 'readthedocs:guides/reproducible-builds:pinning dependencies'
/home/docs/checkouts/readthedocs.org/user_builds/readthedocs-blog/checkouts/210/webhook-deprecations.rst:24: WARNING: undefined label: 'readthedocs:integrations:integration creation'
generating indices... genindex done
/home/docs/checkouts/readthedocs.org/user_builds/readthedocs-blog/checkouts/210/sphinx-4-4-release-other-ecosystem-news.rst:66: WARNING: undefined label: 'readthedocs:guides/reproducible-builds:pinning dependencies'
/home/docs/checkouts/readthedocs.org/user_builds/readthedocs-blog/checkouts/210/sphinx-4-4-release-other-ecosystem-news.rst:66: WARNING: undefined label: 'readthedocs:guides/reproducible-builds:pinning dependencies'
/home/docs/checkouts/readthedocs.org/user_builds/readthedocs-blog/checkouts/210/embed-api-v3.rst:66: WARNING: undefined label: 'readthedocs:guides/embedding-content:embedding content from your documentation'
writing additional pages... search done
copying images... [  2%] img/2018-readthedocs-adblocker-update.png

[humitos]

Those warnings are happening because we refactored our docs, but it's not related to my changes from this PR 😄

[benjaoming]

I'll fix them in another PR then :+1: