Improve check for misspelling of parametrize

- there is no need to do this with `--strict-markers`
- it can be done when looking up marks, instead of for every generated
  test

src/_pytest/python.py

@@ -120,17 +120,7 @@ def pytest_cmdline_main(config):
         return 0
 
 
-def _validate_parametrize_spelling(metafunc):
-    """Raise a specific error for common misspellings of "parametrize"."""
-    for mark_name in ["parameterize", "parametrise", "parameterise"]:
-        if metafunc.definition.get_closest_marker(mark_name):
-            msg = "{0} has '{1}' mark, spelling should be 'parametrize'"
-            fail(msg.format(metafunc.function.__name__, mark_name), pytrace=False)
-
-
 def pytest_generate_tests(metafunc):
-    _validate_parametrize_spelling(metafunc)
-
     for marker in metafunc.definition.iter_markers(name="parametrize"):
         metafunc.parametrize(*marker.args, **marker.kwargs)