imports organized

smash/web/tests/models/test_study.py

 import logging
 
 from django.test import TestCase
-from django.forms import ValidationError
-from web.tests.functions import create_study, create_study_subject
-from web.forms.study_forms import StudyEditForm
-from web.models.study import Study
-from web.models.study_subject import StudySubject
+
+from web.tests.functions import create_study
 
 logger = logging.getLogger(__name__)