python: remove redundant methods from Package

[bluetech]

They are already inherited exactly the same from FSCollector:

pytest/src/_pytest/nodes.py

Lines 646 to 652 in 24534cd

	def gethookproxy(self, fspath: "os.PathLike[str]"):
	warnings.warn(FSCOLLECTOR_GETHOOKPROXY_ISINITPATH, stacklevel=2)
	return self.session.gethookproxy(fspath)
	def isinitpath(self, path: Union[str, "os.PathLike[str]"]) -> bool:
	warnings.warn(FSCOLLECTOR_GETHOOKPROXY_ISINITPATH, stacklevel=2)
	return self.session.isinitpath(path)