Remove commented out ruff settings

Author: adamtheturtle

pyproject.toml

@@ -164,11 +164,6 @@ lint.ignore = [
     # Ignore "too-many-*" errors as they seem to get in the way more than
     # helping.
     "PLR0913",
-    # Allow 'assert' in tests as it is the standard for pytest.
-    # Also, allow 'assert' in other code as it is the standard for Python type hint
-    # narrowing - see
-    # https://mypy.readthedocs.io/en/stable/type_narrowing.html#type-narrowing-expressions.
-    # "S101",
 ]
 
 lint.per-file-ignores."ci/test_custom_linters.py" = [