Fix dodgy merge.

Author: barneygale

Lib/pathlib/_types.py

@@ -13,7 +13,6 @@ class Parser(Protocol):
     subclass references its path parser via a 'parser' class attribute.
     """
 
-    sep: str
     def join(self, path: str, *paths: str) -> str: ...
     def split(self, path: str) -> tuple[str, str]: ...
     def splitdrive(self, path: str) -> tuple[str, str]: ...