The template `web_editor.assets_edit_html_field` was not used nor
required anymore. The files under that bundle were already included
in the backend.
The template under the key `cssEditAssetId` in html_field.js is in fact
loaded in wysiwyg_iframe.js through the option iframeCssAssets.
Moreover, the line `await getBundle` was doing nothing meaningful as
the bundle assets would not be loaded after being fetched.
task-3446819
closesodoo/odoo#131365
X-original-commit: 4eebfcbdf5428cd1c53bafcd89da7095964ff384
Signed-off-by: David Monjoie (dmo) <dmo@odoo.com>