Remove reference to OpenID registration

openid-4-verifiable-presentations-1_0.md

@@ -470,7 +470,7 @@ For example, an Authorization Request might contain `client_id=verifier_attestat
 
 Note that the Verifier needs to determine which Client Identifier Schemes the Wallet supports prior to sending the Authorization Request in order to choose a supported scheme.
 
-Depending on the Client Identifier Scheme, the Verifier can communicate a JSON object with its metadata using the `client_metadata` parameter which contains name/value pairs defined in Section 4.3 and Section 2.1 of the OpenID Connect Dynamic Client Registration 1.0 [@!OpenID.Registration] specification as well as [@!RFC7591].
+Depending on the Client Identifier Scheme, the Verifier can communicate a JSON object with its metadata using the `client_metadata` parameter which contains name/value pairs.
 
 ### Fallback