chore: Finish removal of pii checks

It looks like the pii check config was removed at some point, but checks that pointed to it were left in place. This just finishes the removal.

Makefile

@@ -1,5 +1,5 @@
 .PHONY: clean clean_tox compile_translations coverage diff_cover docs dummy_translations \
-        extract_translations fake_translations help pii_check pull_translations push_translations \
+        extract_translations fake_translations help pull_translations push_translations \
         quality requirements selfcheck test test-all upgrade validate install_transifex_client
 
 .DEFAULT_GOAL := help
@@ -56,9 +56,6 @@ upgrade: ## update the requirements/*.txt files with the latest packages satisfy
 quality: ## check coding style with pycodestyle and pylint
 	tox -e quality
 
-pii_check: ## check for PII annotations on all Django models
-	tox -e pii_check
-
 piptools: ## install pinned version of pip-compile and pip-sync
 	pip install -r requirements/pip.txt
 	pip install -r requirements/pip-tools.txt
@@ -72,11 +69,11 @@ test: clean ## run tests in the current virtualenv
 diff_cover: test ## find diff lines that need test coverage
 	diff-cover coverage.xml
 
-test-all: quality pii_check ## run tests on every supported Python/Django combination
+test-all: quality ## run tests on every supported Python/Django combination
 	tox
 	tox -e docs
 
-validate: quality pii_check test ## run tests and quality checks
+validate: quality test ## run tests and quality checks
 
 selfcheck: ## check that the Makefile is well-formed
 	@echo "The Makefile is well-formed."

tox.ini

@@ -79,11 +79,3 @@ commands =
     pydocstyle openedx_events tests manage.py setup.py
     isort --check-only --diff tests test_utils openedx_events manage.py setup.py
     make selfcheck
-
-[testenv:pii_check]
-setenv =
-    DJANGO_SETTINGS_MODULE = test_utils.test_settings
-deps =
-    -r{toxinidir}/requirements/test.txt
-commands =
-    code_annotations django_find_annotations --config_file .pii_annotations.yml --lint --report --coverage