Remove the unused utf8_repr function

jedi/_compatibility.py

@@ -198,24 +198,6 @@ def force_unicode(obj):
     return cast_path(obj)
 
 
-def utf8_repr(func):
-    """
-    ``__repr__`` methods in Python 2 don't allow unicode objects to be
-    returned. Therefore cast them to utf-8 bytes in this decorator.
-    """
-    def wrapper(self):
-        result = func(self)
-        if isinstance(result, unicode):
-            return result.encode('utf-8')
-        else:
-            return result
-
-    if is_py3:
-        return func
-    else:
-        return wrapper
-
-
 def pickle_load(file):
     try:
         return pickle.load(file)