Update to use JsonTypeInfo.As.NOTHING

Author: cowtowncoder

src/main/java/tools/jackson/databind/jsontype/impl/NoOpTypeDeserializer.java

@@ -48,8 +48,7 @@ public TypeDeserializer forProperty(BeanProperty prop) {
 
     @Override
     public JsonTypeInfo.As getTypeInclusion() {
-        // No proper value but need to return something
-        return JsonTypeInfo.As.EXISTING_PROPERTY;
+        return JsonTypeInfo.As.NOTHING;
     }
 
     @Override

src/main/java/tools/jackson/databind/jsontype/impl/NoOpTypeSerializer.java

@@ -38,8 +38,7 @@ public TypeSerializer forProperty(SerializationContext ctxt, BeanProperty prop)
 
     @Override
     public JsonTypeInfo.As getTypeInclusion() {
-        // No proper one to use but must return something:
-        return JsonTypeInfo.As.EXISTING_PROPERTY;
+        return JsonTypeInfo.As.NOTHING;
     }
 
     @Override
@@ -49,6 +48,8 @@ public String getPropertyName() {
 
     @Override
     public TypeIdResolver getTypeIdResolver() {
+        // 07-Dec-2025, tatu: [databind#1654] Important! Indicates
+        //   that no actual Type Id handled.
         return null;
     }