Remove unrequired flake8 checks

setup.cfg

@@ -19,13 +19,6 @@ ignore =
     F405,  # name be undefined, or defined from star imports: module
     # mccabe error
     C901,  # function is too complex
-    # future-import errors
-    # FI12,  # `__future__` import "with_statement" missing
-    # FI14,  # `__future__` import "unicode_literals" missing
-    # FI15,  # `__future__` import "generator_stop" missing
-    # FI50,  # `__future__` import "division" present
-    # FI51,  # `__future__` import "absolute_import" present
-    # FI53,  # `__future__` import "print_function" present
     N818,  # Exception subclasses should be named with an Error suffix
 per-file-ignores =
     ./beet:D

setup.py

@@ -116,9 +116,7 @@ setup(
         ],
         'lint': [
             'flake8',
-            'flake8-coding',
             'flake8-docstrings',
-            'flake8-future-import',
             'pep8-naming',
         ],