Removed unused imports

ckanext/odsh/controller.py

 from types import FunctionType
 import ckan.lib.base as base
 import decorator
-from ckan.controllers.home import HomeController
-from ckan.controllers.user import UserController
-from ckan.controllers.api import ApiController
-from ckan.controllers.organization import OrganizationController
 from ckanext.harvest.controllers.view import ViewController as HarvestController
 from ckan.controllers.feed import FeedController
-from ckan.controllers.package import PackageController
 from ckan.controllers.feed import FeedController, ITEMS_LIMIT, _package_search, _create_atom_id
 import ckan.lib.helpers as h
 import ckan.authz as authz
 import logging
 import ckan.logic as logic
-from ckan.common import c, request, config
-import hashlib
-import ckan.plugins.toolkit as toolkit
-from ckanext.dcat.controllers import DCATController
-import ckan.model as model
-from . import helpers
-import json
-
+from ckan.common import request, config
 
 abort = base.abort
 log = logging.getLogger(__name__)