Fix TrustedQueryApi Error (#6170)

Related to https://github.com/paritytech/polkadot-sdk/issues/6161

This seems to fix the `JavaScript heap out of memory` error encountered
in the bridge zombienet tests lately.

This is just a partial fix, since we also need to address
https://github.com/paritytech/polkadot-sdk/issues/6133 in order to fully
fix the bridge zombienet tests

.gitlab/pipeline/zombienet.yml

@@ -9,7 +9,6 @@
     RUN_IN_CI: "1"
     KUBERNETES_CPU_REQUEST: "512m"
     KUBERNETES_MEMORY_REQUEST: "1Gi"
-    NODE_OPTIONS: "--max-old-space-size=8192"
   timeout: 60m
 
 include:

polkadot/xcm/xcm-runtime-apis/src/trusted_query.rs

@@ -44,9 +44,7 @@ sp_api::decl_runtime_apis! {
 #[derive(Copy, Clone, Encode, Decode, Eq, PartialEq, Debug, TypeInfo)]
 pub enum Error {
 	/// Converting a versioned Asset structure from one version to another failed.
-	#[codec(index = 1)]
 	VersionedAssetConversionFailed,
 	/// Converting a versioned Location structure from one version to another failed.
-	#[codec(index = 1)]
 	VersionedLocationConversionFailed,
 }