Remove factory functions for PRF outputs

Author: emlun

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

@@ -925,16 +925,6 @@ public static class PrfRegistrationOutput {
         this.results = results;
       }
 
-      /** TODO */
-      public static PrfRegistrationOutput enabled(final Boolean enabled) {
-        return new PrfRegistrationOutput(enabled, null);
-      }
-
-      /** TODO */
-      public static PrfRegistrationOutput results(final PrfValues results) {
-        return new PrfRegistrationOutput(true, results);
-      }
-
       public Optional<Boolean> getEnabled() {
         return Optional.ofNullable(enabled);
       }
@@ -967,10 +957,6 @@ public static class PrfAuthenticationOutput {
         this.results = results;
       }
 
-      public static PrfAuthenticationOutput results(final PrfValues results) {
-        return new PrfAuthenticationOutput(results);
-      }
-
       /**
        * @return A present {@link Optional} if {@link LargeBlobAuthenticationInput#getRead()} was
        *     <code>true</code> and the blob content was successfully read. Otherwise (if {@link