Fix polymorphism problem with relationships

Since we are using subclasses of the ORM mapped classes, disable
typechecks for ORM relations

lib/redpage.py

@@ -30,8 +30,7 @@ import mwparserfromhell as mwparser
 
 import jogobot  # noqa
 
-from lib.mysqlred import MysqlRedPage, relationship
-from sqlalchemy.orm.collections import attribute_mapped_collection
+from lib.mysqlred import MysqlRedPage
 from lib.redfam import RedFamParser
 
 
@@ -40,12 +39,6 @@ class RedPage( MysqlRedPage ):
     Class for handling redundance discussion pages and archives
     """
 
-    # TODO POLYMORPHISM? of BASEClass
-    redfams = relationship(
-        "RedFamParser", order_by=RedFamParser.famhash,
-        back_populates="redpage",
-        collection_class=attribute_mapped_collection( "famhash" ) )
-
     def __init__( self, page=None, pageid=None, archive=False ):
         """
         Generate a new RedPage object based on the given pywikibot page object