Drop HttpResponseRedirect import

lms/djangoapps/courseware/views.py

@@ -9,7 +9,7 @@ from django.core.context_processors import csrf
 from django.core.urlresolvers import reverse
 from django.contrib.auth.models import User
 from django.contrib.auth.decorators import login_required
-from django.http import Http404, HttpResponse, HttpResponseRedirect
+from django.http import Http404, HttpResponse
 from django.shortcuts import redirect
 from mitxmako.shortcuts import render_to_response, render_to_string
 #from django.views.decorators.csrf import ensure_csrf_cookie