remove bad ref to test app

bakerydemo/settings/base.py

@@ -34,7 +34,6 @@ INSTALLED_APPS = [
     'bakerydemo.base',
     'bakerydemo.blog',
     'bakerydemo.breads',
-    'bakerydemo.foo',
     'bakerydemo.locations',
     'bakerydemo.search',