Remove unused browse-list CSS
Remove unused browse-list CSS

Looks like the HTML for this was removed in this
pull request:

https://github.com/alphagov/notifications-admin/commit/722d1f0af4879ddb8b14cd240b85d5af60ccb191

It was added in this commit and I can't find any
other uses when searching so think its redundant:

https://github.com/alphagov/notifications-admin/commit/7e4c5c97b0433af9f7145d6d7ad91f74b0397f51

This removes the CSS.

alphagov/notifications-admin,alphagov/notifications-admin,alphagov/notifications-admin,alphagov/notifications-admin