Remove weird .pdf generation

[lindanlee]

This thing: https://readthedocs.org/projects/zcash/downloads/pdf/latest/

[wilmoore]

I have a couple questions on this:

1. Where is this linked from
2. Is this ask being made because the document is outdated?

[wilmoore]

ping @mdr0id

[mdr0id]

Sorry for delay on this. I'm confused why this ticket is in this repo. It appears Linda was using this repo as a staging area for tickets or something?

Anyway the link above is generated by default from the ReadtheDocs Sync tooling:

In the bottom left corner, it generates different formats every time a MR from Gitlab is merge into zcash-docs repo.