As described here, there's a new role "Work package editor" https://www.openproject.org/docs/user-guide/work-packages/share-work-packages/#configuration

We already have a role "Editor".

Can we delete "Work package editor" without any issue?

Alright, as I see that "Work package editor" is not a real role under Roles and Permissions (/admin/roles).

I added a task to reduce the confusion for admins:

https://community.openproject.org/projects/openproject/work_packages/53232/activity

It seems that "Work package editor" is not a real role under roles and permission in your system. Given that, there should be no issue with deleting it since it doesn't exist as a separate role. If you already have an existing role called "Editor" you can continue using that role for managing work packages without any problem.