Remove django-maintenance-mode package (unused)

config/settings/base.py

@@ -25,10 +25,6 @@ UNAUTHENTICATED_ACCESS = True
 # Debug mode is off by default
 DEBUG = False
 
-# Maintenance mode: used by django-maintenance-mode package.
-# Set to off by default
-MAINTENANCE_MODE = False
-
 # Number of results to show on latest page
 LATEST_RESULTS_NUMBER = 50
 
@@ -326,7 +322,6 @@ MIDDLEWARE = [
     'django.contrib.auth.middleware.AuthenticationMiddleware',
     'ligoauth.middleware.ShibbolethWebAuthMiddleware',
     'ligoauth.middleware.ControlRoomMiddleware',
-    'maintenance_mode.middleware.MaintenanceModeMiddleware',
 ]
 
 # Path to root URLconf
@@ -344,7 +339,6 @@ INSTALLED_APPS = [
     'django.contrib.sites',
     'django.contrib.staticfiles',
     'django.contrib.messages',
-    'maintenance_mode',
     'alerts',
     'api',
     'events',

requirements.txt

@@ -3,7 +3,6 @@ Django==1.11.16
 django-debug-toolbar==1.9.1
 django-extensions==2.0.5
 django-guardian==1.4.9
-django-maintenance-mode==0.7.2
 django-model-utils==3.1.1
 django-silk==3.0.1
 django-twilio==0.9.0