BLD: remove extraneous installs from doc job
Recent changes to the way the Bilby test images are built mean we don't have to manually install new packages for the docs job.
Maintenance will be performed on git.ligo.org, containers.ligo.org, and docs.ligo.org on Tuesday 24 September 2024 starting at approximately 9am PDT. It is expected to take around 30 minutes and there will be several periods of downtime throughout the maintenance. Please address any comments, concerns, or questions to the helpdesk.
Recent changes to the way the Bilby test images are built mean we don't have to manually install new packages for the docs job.