Login using LDAP removed

There's still one reference to LDAP login in
`templates/registration/login.html`.

Dockerfile

@@ -3,7 +3,7 @@ FROM python:3.9
 ENV PYTHONDONTWRITEBYTECODE=1
 ENV PYTHONUNBUFFERED=1
 
-RUN apt-get update && apt-get install -y libldap2-dev libsasl2-dev libgraphviz-dev graphviz pandoc
+RUN apt-get update && apt-get install -y libsasl2-dev libgraphviz-dev graphviz pandoc
 
 COPY requirements.txt /kelvin/requirements.txt
 RUN pip install -r /kelvin/requirements.txt

common/utils.py

@@ -5,7 +5,6 @@
 import re
 from functools import lru_cache
 
-LDAP_CONNECTION = None
 
 @lru_cache()
 def is_teacher(user):

kelvin/settings.py

@@ -146,7 +146,6 @@
     'django.contrib.auth.backends.ModelBackend',
     'api.backends.TokenBackend',
     'django_cas_ng.backends.CASBackend',
-    'web.vsbldapbackend.MyLDAPBackend'
 ]
 
 DATA_UPLOAD_MAX_MEMORY_SIZE = 100 * 1024 * 1024

kelvin/urls.py

@@ -24,14 +24,12 @@
     from django_cas_ng import views as auth_views
 else:
     from django.contrib.auth import views as auth_views
-from django.contrib.auth.views import LoginView as LDAPLoginView
 
 urlpatterns = [
     path('', include('web.urls')),
     path('admin/', admin.site.urls),
     path('accounts/logout/', auth_views.LogoutView.as_view(), name='cas_ng_logout'),
     path('accounts/login/', auth_views.LoginView.as_view(), name='cas_ng_login'),
-    path('accounts/login/ldap', LDAPLoginView.as_view()),
     path('api/', include('api.urls')),
     path('django-rq/', include('django_rq.urls')),
     path('survey/', include('survey.urls')),

requirements.txt

@@ -18,7 +18,6 @@ pandas==1.5.3
 psycopg2
 pygraphviz==1.7
 pyserde==0.12.2
-python-ldap==3.4.0
 python-magic==0.4.27
 pyyaml==5.4
 readwise-django-rq-scheduler==1.2.1