Apply suggestions from code review

Co-authored-by: Paul <[email protected]>

Author: bmzig

src/finalizer/utils/cctp/svm/l2Tol1.ts

@@ -34,7 +34,7 @@ export async function bridgeTokensToHubPool(
   solanaClient: SVMSpokePoolClient,
   signer: KeyPairSigner,
   logger: winston.Logger,
-  hubChainId = 1
+  hubChainId = CHAIN_IDs.MAINNET
 ): Promise<{ message: string; signature?: string }> {
   const svmProvider = solanaClient.svmEventsClient.getRpc();
   const svmSpoke = solanaClient.spokePoolAddress;
@@ -105,7 +105,7 @@ export async function bridgeTokensToHubPool(
     appendTransactionMessageInstructions([bridgeTokensToHubPoolIx], tx)
   );
   const formatUsdc = createFormatFunction(2, 4, false, 6);
-  if ((process.env["SEND_TRANSACTIONS"] ?? "false") === "true") {
+  if ((process.env.SEND_TRANSACTIONS === "true") {
     const withdrawSignature = await sendAndConfirmSolanaTransaction(bridgeTokensToHubPoolTx, signer, svmProvider);
     return {
       message: `Withdrew ${formatUsdc(pendingWithdrawAmount.toString())} USDC from Solana to the hub pool.`,