tox: ignore external flake8

We don't use sitepackages=true in tox, so this doesn't make sense.

tox: ignore external flake8
We don't use sitepackages=true in tox, so this doesn't make sense.
2fae48f5 · Philippe Pepiot · 1296fdb43ae5 · db340ea7
Commit 2fae48f5 authored Jan 29, 2019 by Philippe Pepiot
--- a/tox.ini
+++ b/tox.ini
@@ -14,8 +14,6 @@ commands =
 [testenv:flake8]
 basepython = python3
 skip_install = true
-whitelist_externals =
-  flake8
 deps =
  flake8
 commands = flake8 {posargs}