fix: Remove LooseVersion

Author: hoxbro

ipywidgets_bokeh/kernel.py

@@ -9,8 +9,6 @@
 import json
 import logging
 
-from distutils.version import LooseVersion
-
 import ipykernel
 import ipykernel.kernelbase
 import jupyter_client.session as session
@@ -20,8 +18,6 @@
 from tornado.ioloop import IOLoop
 from traitlets import Any
 
-kernel_version = LooseVersion(ipykernel.__version__)
-
 SESSION_KEY = b'ipywidgets_bokeh'
 
 class WebsocketStream(object):