Cleanup imports.

accountant/__init__.py

@@ -14,13 +14,10 @@
     You should have received a copy of the GNU Affero General Public License
     along with Accountant.  If not, see <http://www.gnu.org/licenses/>.
 """
-from contextlib import contextmanager
-
 from flask import Flask, redirect, url_for
 from flask.ext.sqlalchemy import SQLAlchemy
 from flask.ext.bower import Bower
-from flask.ext.assets import Environment, Bundle
-
+from flask.ext.assets import Environment
 
 # The app
 app = Flask(__name__, static_folder=None)