remove pytest in pyproject.toml

pyproject.toml

@@ -33,6 +33,3 @@ reportUntypedFunctionDecorator = "none"
 reportMissingTypeStubs = false
 reportUnboundVariable = "warning"
 reportGeneralTypeIssues ="none"
-
-[tool.pytest.ini_options]
-filterwarnings = ['ignore:.*step API.*:DeprecationWarning'] # TODO: to be removed when old step API is removed