Remove unused imports from cms, as detected by pylint.

cms/djangoapps/contentstore/tests/test_item.py

-from contentstore.utils import get_modulestore, get_url_reverse
 from contentstore.tests.test_course_settings import CourseTestCase
 from xmodule.modulestore.tests.factories import CourseFactory
 from django.core.urlresolvers import reverse

cms/djangoapps/models/settings/course_metadata.py

 from xmodule.modulestore import Location
 from contentstore.utils import get_modulestore
-from xmodule.x_module import XModuleDescriptor
 from xmodule.modulestore.inheritance import own_metadata
 from xblock.core import Scope
 from xmodule.course_module import CourseDescriptor

cms/envs/common.py

@@ -21,7 +21,7 @@ Longer TODO:
 
 # We intentionally define lots of variables that aren't used, and
 # want to import all variables from base settings files
-# pylint: disable=W0401, W0614
+# pylint: disable=W0401, W0611, W0614
 
 import sys
 import lms.envs.common
@@ -155,7 +155,7 @@ MIDDLEWARE_CLASSES = (
 
 ############################ SIGNAL HANDLERS ################################
 # This is imported to register the exception signal handling that logs exceptions
-import monitoring.exceptions  # noqa
+import monitoring.exceptions  # noqa # pylint: disable=W0611
 
 ############################ DJANGO_BUILTINS ################################
 # Change DEBUG/TEMPLATE_DEBUG in your environment settings files, not here

cms/envs/dev_ike.py

@@ -7,9 +7,7 @@
 # FORCE_SCRIPT_NAME = '/cms'
 
 from .common import *
-from logsettings import get_logger_config
 from .dev import *
-import socket
 
 MITX_FEATURES['AUTH_USE_MIT_CERTIFICATES'] = True
 

cms/urls.py

 from django.conf import settings
 from django.conf.urls import patterns, include, url
+
+# Import this file so it can do its work, even though we don't use the name.
+# pylint: disable=W0611
 from . import one_time_startup
 
 # Uncomment the next two lines to enable the admin: