Some Fixes for pylint

mfa/views.py

@@ -2,18 +2,17 @@ import importlib
 
 from django.shortcuts import render
 from django.http import HttpResponse, HttpResponseRedirect
-from .models import *
+
 
 try:
     from django.urls import reverse
 except:
     from django.core.urlresolvers import reverse  # pyre-ignore[21]
-from django.template.context_processors import csrf
-from django.template.context import RequestContext
-from django.conf import settings
-from . import TrustedDevice
 from django.contrib.auth.decorators import login_required
 from user_agents import parse
+from django.conf import settings
+from . import TrustedDevice
+from .models import User_Keys
 
 
 @login_required