Remove unused imports

Signed-off-by: Michal Čihař <michal@cihar.com>

weblate/trans/management/commands/auto_translate.py

@@ -22,10 +22,8 @@ from optparse import make_option
 
 from django.core.management.base import BaseCommand, CommandError
 from django.contrib.auth.models import User
-from django.http.request import HttpRequest
 
 from weblate.trans.models import Translation, SubProject
-from weblate.accounts.models import get_author_name
 from weblate.trans.autotranslate import auto_translate