Simplify the scm_setuptools version by a lot.

setup.py

@@ -1,23 +1,11 @@
 import os.path as op
-import string
 
 from setuptools import setup
-from setuptools_scm import get_version
 
 
 def local_version(version):
     """Patch in a version that can be uploaded to test PyPI."""
-    scm_version = get_version()
-    if "dev" in scm_version:
-        gh_in_int = []
-        for char in version.node:
-            if char.isdigit():
-                gh_in_int.append(str(char))
-            else:
-                gh_in_int.append(str(string.ascii_letters.find(char)))
-        return "".join(gh_in_int)
-    else:
-        return ""
+    return ""
 
 
 opts = {