Make CredentialRegistration not extend JsonSerializable

Author: emlun

webauthn-server-demo/src/main/scala/demo/webauthn/data/CredentialRegistration.java

@@ -2,10 +2,8 @@
 
 import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonProperty;
-import com.yubico.u2f.data.messages.json.JsonSerializable;
 import com.yubico.webauthn.data.RegistrationResult;
 import com.yubico.webauthn.data.UserIdentity;
-import demo.webauthn.json.ScalaJackson;
 import java.time.Instant;
 import lombok.Builder;
 import lombok.Value;
@@ -14,7 +12,7 @@
 @Value
 @Builder
 @Wither
-public class CredentialRegistration extends JsonSerializable {
+public class CredentialRegistration {
 
     long signatureCount;
 
@@ -31,9 +29,4 @@ public String getRegistrationTimestamp() {
         return registrationTime.toString();
     }
 
-    @Override
-    public String toJson() {
-        return toJson(new ScalaJackson().get());
-    }
-
 }