Delete an existing element in Artifactory YAML

You can also configure the YAML file to delete elements, such as deleting a value for an existing field or removing an existing repository, using the following format.

key: null

Or

key: ~

For example:

Deleting a repository

localRepositories:
     docker-local: null

localRepositories:
     docker-local: ~

Deleting a field

remoteRepositories: 
        docker-remote: 
                description: null
                notes: null
                proxy: null