Add django_countries to proper dep

Author: ericholscher

readthedocs/settings/base.py

@@ -82,7 +82,6 @@ def INSTALLED_APPS(self):  # noqa
             'copyright',
             'textclassifier',
             'annoying',
-            'django_countries',
             'django_extensions',
             'messages_extends',
 
@@ -119,6 +118,7 @@ def INSTALLED_APPS(self):  # noqa
             'allauth.socialaccount.providers.bitbucket_oauth2',
         ]
         if donate:
+            apps.append('django_countries')
             apps.append('readthedocsext.donate')
         return apps
 

requirements/pip.txt

@@ -25,8 +25,6 @@ slumber==0.7.1
 lxml==3.3.5
 defusedxml==0.5.0
 
-django-countries==3.4.1
-
 # Basic tools
 redis==2.10.3
 celery==3.1.23