Old readthedocs site still exists and is first hit on Google

[Jamie-]

5 years ago this commit (https://github.com/sigmavirus24/github3.py/commit/6f80592d525fdf71b43c82bdf271162f81e5465f) changed the docs site from https://github3py.readthedocs.io/ to https://github3.readthedocs.io/

However today the old (?) docs site is still available and is the first hit on google when searching for "github3.py" (in fact the new site does not even appear on the first page).

Given the old site has not been updated in a long time, can it be shut down?