Fixup changes to people model and migration

opentech/public/people/management/commands/migrate_people.py

@@ -103,9 +103,8 @@ class Command(BaseCommand):
             '393': Page.objects.get(title='Internet Freedom Fund'),
             '389': Page.objects.get(title='Rapid Response Fund'),
             '391': Page.objects.get(title='Core Infrastructure Fund'),
-            '': Page.objects.get(title='Community Lab'),
+            'NOT_USED': Page.objects.get(title='Community Lab'),
             '394': Page.objects.get(title='Information Controls Fellowship'),
-            '': None,
             '390': Page.objects.get(title='Digital Integrity Fellowship'),
         }
 

opentech/public/people/models.py

 from django.db import models
 from django.core.exceptions import ValidationError
-from django.utils.functional import cached_property
 from django.core.paginator import EmptyPage, PageNotAnInteger, Paginator
 from django.conf import settings