Remove meta_type overrides #41067

This fixes standard copy-paste behavior. The overrides don't seem useful inside the GED.
https://groups.google.com/forum/#!topic/dexterity-development/78si45jllyA

src/collective/contact/core/content/directory.py

@@ -52,7 +52,7 @@ class Directory(Container):
     """Directory content type"""
     implements(IDirectory)
 
-    meta_type = 'directory'
+    # meta_type = 'directory'
 
 
 class DirectorySchemaPolicy(grok.GlobalUtility,

src/collective/contact/core/content/held_position.py

@@ -89,7 +89,7 @@ class HeldPosition(Container):
 
     implements(IHeldPosition)
 
-    meta_type = 'held_position'
+    # meta_type = 'held_position'
     use_parent_address = NO_VALUE
     parent_address = NO_VALUE
 

src/collective/contact/core/content/person.py

@@ -66,7 +66,7 @@ class Person(Container):
 
     implements(IPerson)
 
-    meta_type = 'person'
+    # meta_type = 'person'
     is_created = False
     # plone.dexterity.content.Content.__getattr__ retrieve the field.default
     # so step 1.2.1 in z3c.form.widget.py returns something instead of NO_VALUE

src/collective/contact/core/content/position.py

@@ -56,7 +56,7 @@ class Position(Container):
 
     implements(IPosition)
 
-    meta_type = 'position'
+    # meta_type = 'position'
     use_parent_address = NO_VALUE
     parent_address = NO_VALUE