chore: drop dep that never is valid (#1149)

* chore: drop dep that never is valid

* no more renaming importlib.metadata as importlib_metadata

---------

Co-authored-by: Jim Pivarski <jpivarski@users.noreply.github.com>

pyproject.toml

@@ -39,7 +39,6 @@ classifiers = [
 dependencies = [
   "awkward>=2.4.6",
   "cramjam>=2.5.0",
-  "importlib-metadata;python_version<\"3.8\"",
   "numpy",
   "fsspec",
   "packaging",

src/uproot/extras.py

@@ -10,7 +10,7 @@
 from __future__ import annotations
 
 import atexit
-import importlib.metadata as importlib_metadata
+import importlib.metadata
 import os
 
 from uproot._util import parse_version
@@ -151,11 +151,11 @@ def xrootd_version():
     Gets the XRootD version if installed, otherwise returns None.
     """
     try:
-        return importlib_metadata.version("xrootd")
+        return importlib.metadata.version("xrootd")
     except ModuleNotFoundError:
         try:
             # Versions before 4.11.1 used pyxrootd as the package name
-            return importlib_metadata.version("pyxrootd")
+            return importlib.metadata.version("pyxrootd")
         except ModuleNotFoundError:
             return None