Merge pull request #269 from datalayer-contrib/open_browser

Remove open_browser attribute from extensionapp

Author: blink1073

jupyter_server/extension/application.py

@@ -203,9 +203,6 @@ def static_url_prefix(self):
         help=_("""Handlers appended to the server.""")
     ).tag(config=True)
 
-    # Whether to open in a browser after starting.
-    open_browser = True
-
     def _config_file_name_default(self):
         """The default config file name."""
         if not self.name: