Remove credProps from assertion extension outputs

Author: emlun

NEWS

@@ -58,7 +58,6 @@ New features:
     version increase.
  ** NOTE: Experimental features may receive breaking changes without a major
     version increase.
-* (Experimental) Added `credProps` extension to assertion extension outputs.
 
 
 == Version 2.5.4 ==

webauthn-server-core/src/main/java/com/yubico/webauthn/data/ClientAssertionExtensionOutputs.java

@@ -64,18 +64,13 @@ public class ClientAssertionExtensionOutputs implements ClientExtensionOutputs {
    */
   private final Boolean appid;
 
-  private final Extensions.CredentialProperties.CredentialPropertiesOutput credProps;
-
   private final Extensions.LargeBlob.LargeBlobAuthenticationOutput largeBlob;
 
   @JsonCreator
   private ClientAssertionExtensionOutputs(
       @JsonProperty("appid") Boolean appid,
-      @JsonProperty("credProps")
-          Extensions.CredentialProperties.CredentialPropertiesOutput credProps,
       @JsonProperty("largeBlob") Extensions.LargeBlob.LargeBlobAuthenticationOutput largeBlob) {
     this.appid = appid;
-    this.credProps = credProps;
     this.largeBlob = largeBlob;
   }
 
@@ -86,9 +81,6 @@ public Set<String> getExtensionIds() {
     if (appid != null) {
       ids.add(Extensions.Appid.EXTENSION_ID);
     }
-    if (credProps != null) {
-      ids.add(Extensions.CredentialProperties.EXTENSION_ID);
-    }
     if (largeBlob != null) {
       ids.add(Extensions.LargeBlob.EXTENSION_ID);
     }
@@ -108,24 +100,6 @@ public Optional<Boolean> getAppid() {
     return Optional.ofNullable(appid);
   }
 
-  /**
-   * The extension output for the Credential Properties Extension (<code>credProps</code>), if any.
-   *
-   * <p>This value MAY be present but have all members empty if the extension was successfully
-   * processed but no credential properties could be determined.
-   *
-   * @see com.yubico.webauthn.data.Extensions.CredentialProperties.CredentialPropertiesOutput
-   * @see <a
-   *     href="https://www.w3.org/TR/2021/REC-webauthn-2-20210408/#sctn-authenticator-credential-properties-extension">§10.4.
-   *     Credential Properties Extension (credProps)</a>
-   * @deprecated EXPERIMENTAL: This feature is from a not yet mature standard; it could change as
-   *     the standard matures.
-   */
-  @Deprecated
-  public Optional<Extensions.CredentialProperties.CredentialPropertiesOutput> getCredProps() {
-    return Optional.ofNullable(credProps);
-  }
-
   /**
    * The extension output for the <a
    * href="https://www.w3.org/TR/2021/REC-webauthn-2-20210408/#sctn-large-blob-extension">Large blob