doc: remove outdated footnote (Python 2 --> 3 for V8 tests)
Various Python 3 compatibility fixes were made in upstream V8, and they have even dropped Python 2 compatibility in various scripts.
depot_tools, which bootstraps the V8 build, is also moving to Python 3.
As of Node v18.0.0-ish, this footnote is no-longer accurate.
(Running make test-v8
no-longer requires Python 2,
and it won't work anymore if you don't have a copy of Python 3.)