[testnet] Remove Wococo stuff from BridgeHubRococo/AssetHubRococo (#2300)

Rococo<>Wococo bridge is replaced by Rococo<Westend bridge, so this PR
removes unneeded code.

- [x] update bridges subtree after
https://github.com/paritytech/parity-bridges-common/pull/2692

---------

Co-authored-by: command-bot <>
Co-authored-by: Svyatoslav Nikolsky <svyatonik@gmail.com>

bridges/zombienet/helpers/wait-hrmp-channel-opened.js

@@ -0,0 +1,22 @@
+async function run(nodeName, networkInfo, args) {
+    const {wsUri, userDefinedTypes} = networkInfo.nodesByName[nodeName];
+    const api = await zombie.connect(wsUri, userDefinedTypes);
+
+    const sibling = args[0];
+
+    while (true) {
+        const messagingStateAsObj = await api.query.parachainSystem.relevantMessagingState();
+        const messagingState = api.createType("Option<CumulusPalletParachainSystemRelayStateSnapshotMessagingStateSnapshot>", messagingStateAsObj);
+        if (messagingState.isSome) {
+            const egressChannels = messagingState.unwrap().egressChannels;
+            if (egressChannels.find(x => x[0] == sibling)) {
+                return;
+            }
+        }
+
+        // else sleep and retry
+        await new Promise((resolve) => setTimeout(resolve, 12000));
+    }
+}
+
+module.exports = { run }