Remove unused parameters

- We're not overriding an inherited function, `_` parameter is useless
- We're not using line parameter in the function body, `line` is useless
- Add `argument_removed` deprecation warning for the users who may still use this function.
11 jobs for topic/default/main in 4 minutes and 51 seconds (queued for 14 seconds)
Status Name Job ID Coverage
  Tests
passed black #41472

00:00:20

passed check-manifest #41473

00:00:19

passed flake8 #41369

00:02:39

passed mypy #41474

00:00:32

passed py3 #41475

00:01:49

passed py3-from-forge #41366

00:02:21

failed black #41368

00:06:09

failed check-manifest #41367

00:06:10

failed mypy #41370

00:06:12

failed py3 #41365

00:06:10

 
  After Tests
skipped trigger-cubicweb-pipeline