Remove many redundant inheritances from Generic[] (#10933)

stubs/beautifulsoup4/bs4/element.pyi

@@ -1,7 +1,7 @@
 from _typeshed import Incomplete, ReadableBuffer
 from collections.abc import Callable, Iterable, Iterator
 from re import Pattern
-from typing import Any, Generic, TypeVar, overload
+from typing import Any, TypeVar, overload
 from typing_extensions import Self, TypeAlias
 
 from . import BeautifulSoup
@@ -372,7 +372,7 @@ class SoupStrainer:
     searchTag = search_tag
     def search(self, markup: PageElement | Iterable[PageElement]): ...
 
-class ResultSet(list[_PageElementT], Generic[_PageElementT]):
+class ResultSet(list[_PageElementT]):
     source: SoupStrainer
     @overload
     def __init__(self, source: SoupStrainer) -> None: ...