Stop using the 'hidden' click option

This is not supported in debian 9 yet.

Indexer still fails to build [1]

Related 4689f3cc (which was not exhaustive enough) Related !37 (closed)

• [1] https://jenkins.softwareheritage.org/job/debian/job/packages/job/DCIDX/job/gbp-buildpackage/59/console

Test Plan

• tox
• Checking exhaustiveness grep -r "hidden=" * renders nothing after that

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Migrated from D1678 (view on Phabricator)