flake8 was present twice

mattclarke · mattclarke · commit 9f6f67398118 · 2022-12-12T15:26:11.000+01:00
diff --git a/requirements-dev.txt b/requirements-dev.txt
@@ -2,7 +2,6 @@
 black==22.3.0   # Pinned to match pre-commit config
 flake8==4.0.1   # Pinned to match pre-commit config
 isort==5.10.1    # Pinned to match pre-commit configblack
-flake8
 pre-commit
 pytest
 tox==3.27.1  # tox 4 seems to be broken at the moment
