tidy render() calls

core/views_survex.py

@@ -5,12 +5,9 @@ import difflib
 from pathlib import Path
 
 from django import forms
-from django.http import HttpResponseRedirect, HttpResponse
-from django.template import RequestContext
-from django.shortcuts import render_to_response, render
-#from django.core.context_processors import csrf
+from django.http import HttpResponseRedirect, HttpResponse, Http404
+from django.shortcuts import render
 from django.template.context_processors import csrf
-from django.http import HttpResponse, Http404
 from django.views.decorators.csrf import ensure_csrf_cookie
 
 from django.core.exceptions import ObjectDoesNotExist, MultipleObjectsReturned
@@ -382,8 +379,6 @@ def survexcavesingle(request, survex_cave):
     kataster numbers are not unique across areas. Fix this.
     '''
     sc = survex_cave
-    context = RequestContext(request)
-    context_dict = {}
     try:
         cave = Cave.objects.get(kataster_number=sc) # This may not be unique.
         return render(request, 'svxcavesingle.html', {'settings': settings, "cave":cave })