Removed unnecessary, leftover imports

from django.core import mail

from django.core.files.uploadedfile import SimpleUploadedFile

from django.core.urlresolvers import reverse

from django.http import HttpRequest

from django.shortcuts import render

from django.template.base import TemplateDoesNotExist

from django.test import TestCase, RequestFactory

from django.test.utils import (override_settings, setup_test_template_loader,