Remove stale reference to pngmath #2485
Merged
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Completes fix for #2340 (see commit ffa3e5d).
This could be merged as is, but I noticed more cruft in the
conf.py
that I am happy to fix and include in the PR. For example, there are still references to the old Trac site. I am not planning to change anything substantial and I suspect nothing I do will be user visible.Should I include additional Sphinx clean up commits in this PR or would you prefer I create a new PR for that purpose? Either way, I can commit the changes over the weekend.