ino: do not generate easy_install.pth

As per [the wiki][], and mentioned in #29518

[the wiki]:
https://github.com/Homebrew/homebrew/wiki/Homebrew-and-Python#if-the-software-provides-a-setuppy
Please prefer double-quotes, per Homebrew's style guide. Thanks.

(There are many existing quotes that haven't been migrated to the new style yet.)