Remove flake8 and isort config from setup.cfg

Author: kiendang

setup.cfg

@@ -4,46 +4,9 @@ test=pytest
 [bdist_wheel]
 universal=1
 
-[flake8]
-exclude = docs,graphene_django/debug/sql/*
-max-line-length = 120
-select =
-	# Dictionary key repeated
-	F601,
-	# Ensure use of ==/!= to compare with str, bytes and int literals
-	F632,
-	# Redefinition of unused name
-	F811,
-	# Using an undefined variable
-	F821,
-	# Defining an undefined variable in __all__
-	F822,
-	# Using a variable before it is assigned
-	F823,
-	# Duplicate argument in function declaration
-	F831,
-	# Black would format this line
-	BLK,
-	# Do not use bare except
-	B001,
-	# Don't allow ++n. You probably meant n += 1
-	B002,
-	# Do not use mutable structures for argument defaults
-	B006,
-	# Do not perform calls in argument defaults
-	B008
-
 [coverage:run]
 omit = */tests/*
 
-[isort]
-known_first_party=graphene,graphene_django
-multi_line_output=3
-include_trailing_comma=True
-force_grid_wrap=0
-use_parentheses=True
-line_length=88
-
 [tool:pytest]
 DJANGO_SETTINGS_MODULE = examples.django_test_settings
 addopts = --random-order