Disable B907 until a decision is formally taken

For AdaCore#556

Author: enzbang

tox.ini

@@ -70,7 +70,7 @@ markers =
 
 [flake8]
 exclude = .git,__pycache__,build,dist,.tox
-ignore = A003, C901, E203, E266, E501, W503,D100,D101,D102,D102,D103,D104,D105,D106,D107,D203,D403,D213,B028,B906
+ignore = A003, C901, E203, E266, E501, W503,D100,D101,D102,D102,D103,D104,D105,D106,D107,D203,D403,D213,B028,B906,B907
 # line length is intentionally set to 80 here because black uses Bugbear
 # See https://github.com/psf/black/blob/master/README.md#line-length for more details
 max-line-length = 80