The main motivation here is to get these subsections out of the main index.
While changing the heading to an 'h2' or lower would suffice, I opted to remove
them entirely. I did this because the links in this section is for the overall
global documentation. E.g, the "Indices and tables" section under /tools/lint,
has nothing to do with linting.
It is still possible to access the index and search page from the root:
https://firefox-source-docs.mozilla.org/#indices-and-tables
Differential Revision: https://phabricator.services.mozilla.com/D43653
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extra : moz-landing-system : lando
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