Fix test (#8996)

Author: hugovk

Tests/test_deprecate.py

@@ -47,7 +47,6 @@ def test_unknown_version() -> None:
  ],
 )
 def test_old_version(deprecated: str, plural: bool, expected: str) -> None:
- expected = r""
  with pytest.raises(RuntimeError, match=expected):
  _deprecate.deprecate(deprecated, 1, plural=plural)