fix(suite): disable Solana websockets and account subscriptions

It seems that there are some issues with the websockets connection which are hard to identify and find. They seem to be happening quite randomly or in very specific cases i.e. they can't be reproduced and thus are very hard to fix. For now we decided to disable the Solana SDK websockets connection and thus we also disabled account subscriptions (which were supposedly causing the issues).

(cherry picked from commit 3c6f925)

packages/blockchain-link/src/workers/solana/index.ts

@@ -282,6 +282,7 @@ const unsubscribeBlock = ({ state }: Context) => {
     state.removeSubscription('block');
 };
 
+// @ts-expect-error
 const subscribeAccounts = async (
     { connect, state, post }: Context,
     accounts: SubscriptionAccountInfo[],
@@ -335,6 +336,7 @@ const subscribeAccounts = async (
     return { subscribed: true };
 };
 
+// @ts-expect-error
 const unsubscribeAccounts = async (
     { state, connect }: Context,
     accounts: SubscriptionAccountInfo[] | undefined = [],
@@ -354,7 +356,8 @@ const subscribe = (request: Request<MessageTypes.Subscribe>) => {
             subscribeBlock(request);
             break;
         case 'accounts':
-            subscribeAccounts(request, request.payload.accounts);
+            // accounts subscription is currently disabled due to it possibly causing crashes
+            // subscribeAccounts(request, request.payload.accounts);
             break;
         default:
             throw new CustomError('worker_unknown_request', `+${request.type}`);
@@ -371,7 +374,8 @@ const unsubscribe = (request: Request<MessageTypes.Unsubscribe>) => {
             unsubscribeBlock(request);
             break;
         case 'accounts': {
-            unsubscribeAccounts(request, request.payload.accounts);
+            // accounts subscription is currently disabled due to it possibly causing crashes
+            // unsubscribeAccounts(request, request.payload.accounts);
             break;
         }
         default:
@@ -408,7 +412,8 @@ class SolanaWorker extends BaseWorker<SolanaAPI> {
     }
 
     tryConnect(url: string): Promise<SolanaAPI> {
-        const api = new Connection(url, { wsEndpoint: url.replace('https', 'wss') });
+        // websocket connection is currently disabled due to it possibly causing crashes
+        const api = new Connection(url /* , { wsEndpoint: url.replace('https', 'wss') } */);
         this.post({ id: -1, type: RESPONSES.CONNECTED });
         return Promise.resolve(api);
     }
@@ -437,9 +442,10 @@ class SolanaWorker extends BaseWorker<SolanaAPI> {
             return;
         }
 
-        this.state.accounts.forEach(
-            a => a.subscriptionId && this.api?.removeAccountChangeListener(a.subscriptionId),
-        );
+        // accounts subscription is currently disabled due to it possibly causing crashes
+        // this.state.accounts.forEach(
+        //     a => a.subscriptionId && this.api?.removeAccountChangeListener(a.subscriptionId),
+        // );
 
         if (this.state.getSubscription('block')) {
             const interval = this.state.getSubscription('block') as NodeJS.Timer;