Don't mess with PYTHONPATH.

Signed-off-by: Lucas C. Villa Real <lucasvr@gobolinux.org>

--- sudo-1.8.31p1/plugins/sudoers/env.c.orig	2020-03-31 21:09:56.677998021 -0300
+++ sudo-1.8.31p1/plugins/sudoers/env.c	2020-03-31 21:35:08.231347378 -0300
@@ -194,7 +194,6 @@ static const char *initial_badenv_table[
     "ZDOTDIR",			/* zsh, search path for dot files */
     "TMPPREFIX",		/* zsh, prefix for temporary files */
     "PYTHONHOME",		/* python, module search path */
-    "PYTHONPATH",		/* python, search path */
     "PYTHONINSPECT",		/* python, allow inspection */
     "PYTHONUSERBASE",		/* python, per user site-packages directory */
     "RUBYLIB",			/* ruby, library load path */