Merge branch 'master' into test_pypy3

Author: python-desert

src/desert/_make.py

@@ -290,11 +290,6 @@ def field_for_schema(
 
     if field is None:
         nested = forward_reference or class_schema(typ)
-        try:
-            nested.help = typ.__doc__
-        except AttributeError:
-            # TODO need to handle the case where nested is a string forward reference.
-            pass
         field = marshmallow.fields.Nested(nested)
 
     field.metadata.update(metadata)