Fixed a couple of pyflakes issues.

- Legacy-Id: 18516

ietf/doc/migrations/0037_clean_up_missing_docaliases.py

@@ -1,8 +1,5 @@
 # Generated by Django 2.2.16 on 2020-09-22 07:58
 
-import sys
-import debug
-
 from django.db import migrations
 
 
@@ -11,10 +8,8 @@ def forward(apps, schema_editor):
     DocAlias = apps.get_model('doc', 'DocAlias')
 
     docs_without_alias = Document.objects.filter(docalias__isnull=True)
-    debug.show('docs_without_alias.count()')
 
     bad_aliases = DocAlias.objects.filter(name__in=docs_without_alias.values_list('name'))
-    debug.show('bad_aliases.count()')
     bad_aliases.delete()
 
     for doc in docs_without_alias: