Remove pytest-pep8 package since it is abandoned (#703)

Author: qtuantruong

pyproject.toml

@@ -50,7 +50,6 @@ Homepage = "https://cornac.preferred.ai"
 [project.optional-dependencies]
 tests = [
     "pytest",
-    "pytest-pep8",
     "pytest-xdist",
     "pytest-cov",
     "Flask",

pytest.ini

@@ -8,14 +8,3 @@ addopts=-v
         --ignore=tests/cornac/utils/test_download.py
         --ignore=tests/cornac/eval_methods/test_propensity_stratified_evaluation.py
 
-# PEP-8 The following are ignored:
-# E501 line too long (82 > 79 characters)
-# E402 module level import not at top of file - temporary measure to continue adding ros python packaged in sys.path
-# E731 do not assign a lambda expression, use a def
-# W503 line break occurred before a binary operator
-
-pep8ignore=* E402 \
-           * E731 \
-           * W503
-# Enable line length testing with maximum line length of 88
-pep8maxlinelength = 88

setup.py

@@ -372,7 +372,7 @@ def run(self):
 
 setup(
     ext_modules=extensions,
-    extras_require={"tests": ["pytest", "pytest-pep8", "pytest-xdist", "pytest-cov", "Flask"]},
+    extras_require={"tests": ["pytest", "pytest-xdist", "pytest-cov", "Flask"]},
     cmdclass=cmdclass,
     packages=find_packages(),
 )