Bug 1717651 - Removed 'ensure_subprocess_env()' from mozbuild/util.py r=mhentges

'ensure_subprocess_env()' is obsolete as Python 2 is no longer used in python/mozbuild .

Differential Revision: https://phabricator.services.mozilla.com/D120102

python/mozbuild/mozbuild/util.py

@@ -1414,22 +1414,6 @@ def ensure_unicode(value, encoding="utf-8"):
     return value
 
 
-def ensure_subprocess_env(env, encoding="utf-8"):
-    """Ensure the environment is in the correct format for the `subprocess`
-    module.
-
-    This will convert all keys and values to bytes on Python 2, and text on
-    Python 3.
-
-    Args:
-        env (dict): Environment to ensure.
-        encoding (str): Encoding to use when converting to/from bytes/text
-                        (default: utf-8).
-    """
-    ensure = ensure_bytes if sys.version_info[0] < 3 else ensure_unicode
-    return {ensure(k, encoding): ensure(v, encoding) for k, v in six.iteritems(env)}
-
-
 def process_time():
     if six.PY2:
         return time.clock()