get rid of python < 3.8 import shenanigans

Author: ejinotti-mdsol

mauth_client/__init__.py

@@ -1,8 +1,4 @@
 # Load the version from the project metatdata
-try:
-    import importlib.metadata as importlib_metadata
-except ModuleNotFoundError:
-    # needed for Python < 3.8
-    import importlib_metadata
+import importlib.metadata as importlib_metadata
 
 __version__ = importlib_metadata.version(__name__)