fix(kube-core): Remove lingering type and description fields from variants without fields

Signed-off-by: Nick Larsen <nick.larsen@stackable.tech>

Author: NickLarsenNZ

kube-core/src/schema.rs

@@ -545,6 +545,18 @@ fn hoist_subschema_properties(
             variant_obj.additional_properties = None;
 
             merge_metadata(instance_type, variant_type.take());
+        } else if let Schema::Object(SchemaObject {
+            metadata: variant_metadata,
+            instance_type: variant_type,
+            enum_values: None,
+            subschemas: None,
+            array: None,
+            object: None,
+            ..
+        }) = variant {
+            // This removes the type/description from untagged variants without fields.
+            std::mem::take(&mut *variant_type);
+            std::mem::take(&mut *variant_metadata);
         }
     }
 }