Revert "[PythonKit] Updated code"

This reverts commit e7ff50f.

[PythonKit] Updated code

[PythonKit] Added support for clearing the Library version or path

[PythonKit] Added function to explicitly load the Python load

Merge pull request pvieito#54 from philipturner/ergonomic-args

Use @_disfavoredOverload to enable more ergonomic syntax for PythonFunction

Merge pull request pvieito#49 from laclouis5/master

Count computed property

Merge pull request pvieito#45 from philipturner/patch-5

Support for subclassing Python objects

Merge pull request pvieito#40 from liuliu/liuliu/python-function

Allow defining Swift functions to be called from Python with revisions

[PythonKit] Added support for finding Apple silicon Homebrew Python

[PythonKit] Removed PythonTool target and external dependency