References to denying delegation remain in spec

Section 10.4 of https://identity.foundation/decentralized-web-node/spec contains the statement,

>and delegation of authorized capabilities to others, if allowed by the owner of a Decentralized Web Node.

and 10.4.1 includes,

>The object MAY contain a delegation property, and its value MUST be a boolean, wherein true indicates the issuing party is allowing the grantee the ability to delegate the capability. A value of false or omission of the property MUST be evaluated as false, and indicates the grantee MUST NOT be allowed to delegate the capability.

Issue 140 removed this property. Any references to denying delegation must be removed from the spec.