Refactor the initial setting bootstrap code

Signed-off-by: Roberto Rosario <roberto.rosario@mayan-edms.com>

mayan/settings/development.py

@@ -1,33 +1,28 @@
 from __future__ import absolute_import, unicode_literals
 
-from mayan.apps.smart_settings.utils import get_environment_setting
-
 from . import *  # NOQA
 
 ALLOWED_HOSTS = ['*']
 
 DEBUG = True
 
-CELERY_TASK_ALWAYS_EAGER = get_environment_setting(
-    name='CELERY_TASK_ALWAYS_EAGER', fallback_default='true'
-)
-CELERY_TASK_EAGER_PROPAGATES = CELERY_TASK_ALWAYS_EAGER
+CELERY_TASK_EAGER_PROPAGATES = CELERY_TASK_ALWAYS_EAGER  # NOQA: F405
 
 EMAIL_BACKEND = 'django.core.mail.backends.console.EmailBackend'
 
-if 'rosetta' not in INSTALLED_APPS:
+if 'rosetta' not in INSTALLED_APPS:   # NOQA: F405
     try:
-        import rosetta
+        import rosetta  # NOQA: F401
     except ImportError:
         pass
     else:
-        INSTALLED_APPS += (
+        INSTALLED_APPS += (  # NOQA: F405
             'rosetta',
         )
 
 if 'django_extensions' not in INSTALLED_APPS:
     try:
-        import django_extensions
+        import django_extensions  # NOQA: F401
     except ImportError:
         pass
     else:
@@ -37,7 +32,7 @@ if 'django_extensions' not in INSTALLED_APPS:
 
 ROOT_URLCONF = 'mayan.urls.development'
 
-TEMPLATES[0]['OPTIONS']['loaders'] = (
+TEMPLATES[0]['OPTIONS']['loaders'] = (  # NOQA: F405
     'django.template.loaders.filesystem.Loader',
     'django.template.loaders.app_directories.Loader',
 )