Use the --venv option instead.
This option was only available when running from source to test the ansible/ansible repository.
This will have no effect on testing collections or running from an installed version of Ansible.
Also update docs to reference the --venv option instead of the --tox option.
The ansible-test shell command doesn't have a --python option; you
have to specify the tox environment directly to the --tox command
Partially fixes: #49349
* orphans testing pages to avoid not-in-toctree errors
* orphans various pages pending reorg
* adds module_utils and special_vars to main TOC
* uses a glob for scenario_guide TOC
* normalize and Sentence-case headings on community pages, typos
* re-orgs community TOC, adds all pages to toctree
* removes scenario guides index page
* adds style guide to community index
* basic update to style guide
* fix typo that created a new error
* removes not-in-toctree from ignore errors list
* leave removing files for future cleanup task
* allow ANSIBLE_KEEP_REMOTE_FILES for local test runner
* add ANSIBLE_KEEP_REMOTE_FILES to tox.ini, update docs
* Clarify handling of environment variables.
* new documentation for unit testing - especially module unit testing
* unit test documentation reformatting and further fixes
* unit test documentation - point to online coverage reports & fix bad spaces
* Small copy edits.
* First pass copy edit / rewrite. More info needed.
* testing documentation - clean up structure, especially code coverage - reduce repetition
* module unit test documentation - improved introduction
* testing documentation - more fixes from and inspired by review from dharmabumstead
* testing documentation - fixes from mattclay + some other minor tweaks
* More copy edits.
* testing documentation - further fixes from review
* Copy edits
* Copy edits
* More copy edits.
* Big testing doc refactor
* Combine all the testing documentation in to one place to make it easier to find
* Convert everything to RST
* Create testing_network guide
* Create testing landing page
* For each section detail "how to run" and "how to extend testing"
* More examples
* Lots more detail
