Remove references to pycodestyle

We’re using flake8 now instead.

scripts/run_tests.sh

@@ -28,7 +28,7 @@ if [[ -z "$VIRTUAL_ENV" ]] && [[ -d venv ]]; then
   source ./venv/bin/activate
 fi
 
-pycodestyle .
+flake8 .
 display_result $? 1 "Code style check"
 
 npm test

setup.cfg

@@ -1,7 +1,3 @@
-[pycodestyle]
-max-line-length = 120
-exclude = ./migrations,./venv,./venv3,./node_modules,./bower_components,./cache
-
 [tool:pytest]
 norecursedirs = node_modules bower_components
 xfail_strict=true