Revert "Fix error when integrating with pip (#3823)"

This reverts commit 19cbbad, reversing
changes made to bd37bfc.

Author: jaraco

setuptools/command/egg_info.py

@@ -255,8 +255,7 @@ def finalize_options(self):
         # to the version info
         #
         pd = self.distribution._patched_dist
-        key = getattr(pd, "key", None) or getattr(pd, "name", None)
-        if pd is not None and key == self.egg_name.lower():
+        if pd is not None and pd.key == self.egg_name.lower():
             pd._version = self.egg_version
             pd._parsed_version = packaging.version.Version(self.egg_version)
             self.distribution._patched_dist = None