remove obsolete dependency (#395)

`six` is not necessary to run `flake8`.
miguelgrinberg · Mar 24, 2021 · 4ad897f · 4ad897f
1 parent 6566e3d
commit 4ad897f
Showing 1 changed file with 0 additions and 1 deletion.
diff --git a/tox.ini b/tox.ini
@@ -18,7 +18,6 @@ commands=
 
 [testenv:flake8]
 deps=
- six
  flake8
 commands=
  flake8 --exclude=".*" flask_migrate tests