Remove unused imports

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

weblate/trans/formats.py

@@ -38,7 +38,6 @@ from django.utils.translation import ugettext_lazy as _
 from translate.convert import po2php
 from translate.misc import quote
 from translate.storage.lisa import LISAfile
-from translate.storage.mo import mofile, mounit
 from translate.storage.php import phpunit, phpfile
 from translate.storage.po import pounit, pofile
 from translate.storage.poheader import default_header

weblate/trans/views/files.py

@@ -24,9 +24,8 @@ from django.core.exceptions import PermissionDenied
 from django.utils.translation import ugettext as _, ungettext
 from django.utils.encoding import force_text
 from django.shortcuts import redirect
-from django.http import HttpResponse, Http404
+from django.http import Http404
 from django.contrib import messages
-from django.contrib.auth.decorators import permission_required
 from django.views.decorators.http import require_POST
 
 from weblate.trans.util import report_error