Remove options in rb-site for specifying a Python loader.
Review Request #11415 — Created Jan. 29, 2021 and submitted
Django no longer provides fastcgi support, as the whole Python world has
aligned itself around wsgi. This change removes the advanced-mode
question and command line options for choosing the loader.
Ran through the advanced-mode install. The Python Loader page didn't appear,
and installation completed succesfully with correct config files.
Typo in description: provids -> provides