Merge pull request pallets-eco#2194 from ulgens/patch-2

Remove Python 2 residue from requirements-dev.txt

Author: mrjoes

requirements-dev.txt

@@ -17,8 +17,7 @@ pytest-cov
 coveralls
 pylint
 sqlalchemy-citext
-sqlalchemy-utils<=0.36.6; python_version < "3.0"
-sqlalchemy-utils>=0.36.6; python_version >= "3.0"
+sqlalchemy-utils>=0.36.6
 azure-storage-blob
 arrow<0.14.0
 colour