test: simplify local devenv deps

.meta/requirements-test.txt

@@ -1,4 +1,4 @@
-flake8
+pre-commit
 pytest
 pytest-cov
 pytest-timeout

Makefile

@@ -44,7 +44,8 @@ all:
 	@+make build
 
 flake8:
-	@+flake8 -j 8 --count --statistics --exit-zero .
+	@+pre-commit run -a flake8
+	@+pre-commit run -a nbstripout
 
 test:
 	TOX_SKIP_ENV=perf tox --skip-missing-interpreters -p all
@@ -159,6 +160,7 @@ install_build:
 	python -m pip install -r .meta/requirements-dev.txt
 install_test:
 	python -m pip install -r .meta/requirements-test.txt
+	pre-commit install
 
 build:
 	@make prebuildclean

environment.yml

@@ -22,14 +22,10 @@ dependencies:
 - pytest-timeout
 - pytest-asyncio  # [py>=3.7]
 - nbval
-- flake8
-- flake8-bugbear
-- flake8-comprehensions
 - coverage
 # extras
 - dask               # dask
 - matplotlib         # gui
-- nbstripout         # notebook editing
 - numpy              # pandas, keras, contrib.tenumerate
 - pandas
 - tensorflow         # keras
@@ -41,5 +37,3 @@ dependencies:
 - pydoc-markdown     # `cd docs && pymake`
 - pip:
   - py-make >=0.1.0  # `setup.py make/pymake`
-  - flake8-debugger       # flake8
-  - flake8-string-format  # flake8