Remove unused import

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

weblate/accounts/admin.py

@@ -18,7 +18,6 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #
 
-from django import forms
 from django.contrib import admin
 from django.contrib.auth.admin import UserAdmin
 from django.contrib.auth.forms import UserCreationForm, UserChangeForm