Organization try to use scheming.css by href, this cause 404

When we use scheming for customized organization formats and we go over an organization the template is loaded:

https://github.com/ckan/ckanext-scheming/blob/d441d2dee72a7382a73de4185b01fae4b2d37473/ckanext/scheming/templates/organization/edit_base.html#L5

I think that this line is causing the issue, is redundant and can be deleted (maybe also the whole template can go...

Moreover we are already correctly importing the scheming.css thanks to:

https://github.com/ckan/ckanext-scheming/blob/master/ckanext/scheming/2.8_templates/scheming/snippets/scheming_asset.html

and
https://github.com/ckan/ckanext-scheming/blob/d441d2dee72a7382a73de4185b01fae4b2d37473/ckanext/scheming/templates/base.html#L5

What do you think?

Start with ckanext/scheming/templates/organization/edit_base.html at the linked line, then compare its stylesheet reference with ckanext/scheming/templates/base.html and 2.8_templates/scheming/snippets/scheming_asset.html. Confirm the organization page no longer requests a missing scheming.css URL while the existing stylesheet import still works.

Written by the indexing model from the issue text.