formats:
    - htmlzip
    - pdf
python:
    version: 3
    pip_install: true
    extra_requirements:
        - docs

formats:
    - htmlzip
python:
    version: 3
    pip_install: true
    extra_requirements:
        - docs

Revert "Try to enable pdf on RTFD"
Revert "Try to enable pdf on RTFD"

This reverts commit 415ddabb5fd2da5792b4c5d0c9e5072317d40dfb.
