Convert the test staticfile storage to not be manifest

This avoids the need to collect static files as part of the testing process
locally and in CI.

However - recommend updating CI to run collect static with the production
settings to ensure that all static files are present

.circleci/config.yml

@@ -111,7 +111,6 @@ jobs:
           name: run tests
           command: |
             . venv/bin/activate
-            python manage.py collectstatic --noinput --verbosity=0
             python manage.py check
             python manage.py makemigrations --check --noinput --verbosity=1
             coverage run --source='hypha' manage.py test

hypha/settings/test.py

@@ -12,9 +12,7 @@ SECRET_KEY = 'NOT A SECRET'
 PROJECTS_ENABLED = True
 PROJECTS_AUTO_CREATE = True
 
-# Need this to ensure white noise doesn't kill the speed of testing
-# http://whitenoise.evans.io/en/latest/django.html#whitenoise-makes-my-tests-run-slow
-WHITENOISE_AUTOREFRESH = True
+STATICFILES_STORAGE = 'django.contrib.staticfiles.storage.StaticFilesStorage'
 
 PASSWORD_HASHERS = [
     'django.contrib.auth.hashers.MD5PasswordHasher',