fix: allows rejected eth_sendTransaction call to bubble to handler

Fixes: https://github.com/WalletConnect/walletconnect-monorepo/issues/854

There was a superfluous try/catch here which caused the rejection to be
logged and then continue instead of throwing and allowing the
JsonRpcHandler wrapper to handle the promise rejection.

dapps/react-dapp-v2/src/contexts/JsonRpcContext.tsx

@@ -163,10 +163,7 @@ export function JsonRpcContextProvider({ children }: { children: ReactNode | Rea
         };
       }
 
-      let result = "";
-
-      try {
-        result = await client!.request({
+      const result = await client!.request({
         topic: session!.topic,
         chainId,
         request: {
@@ -174,9 +171,6 @@ export function JsonRpcContextProvider({ children }: { children: ReactNode | Rea
           params: [tx],
         },
       });
-      } catch (error) {
-        console.error(error);
-      }
 
       // format displayed result
       return {