Also remove in source .yaml file

Author: yarikoptic

linkml_model/model/schema/meta.yaml

@@ -23,7 +23,6 @@ description: |-
 
   * [MinimalSubset](https://w3id.org/linkml/MinimalSubset)
   * [BasicSubset](https://w3id.org/linkml/BasicSubset)
-  * [BasicSubset](https://w3id.org/linkml/BasicSubset)
 
   For canonical reference documentation on any metamodel construct,
   refer to the official URI for each construct, e.g.