Description of oauth2-introspection resource from Elytron token-realm is copy/pasted from description of jwt.

It is similar as WFLY-7573, but its description (and also its linked fix) talks only about description of attributes. This Jira is related to description of whole resource which currently says:
"A token validator to be used in conjunction with a token-based realm that handles security tokens based on the JWT/JWS standard."