refactor: Remove unused request.fHelp

src/wallet/rpcwallet.cpp

@@ -93,6 +93,7 @@ bool GetWalletNameFromJSONRPCRequest(const JSONRPCRequest& request, std::string&
 
 std::shared_ptr<CWallet> GetWalletForJSONRPCRequest(const JSONRPCRequest& request)
 {
+    CHECK_NONFATAL(!request.fHelp);
     std::string wallet_name;
     if (GetWalletNameFromJSONRPCRequest(request, wallet_name)) {
         std::shared_ptr<CWallet> pwallet = GetWallet(wallet_name);
@@ -101,12 +102,10 @@ std::shared_ptr<CWallet> GetWalletForJSONRPCRequest(const JSONRPCRequest& reques
     }
 
     std::vector<std::shared_ptr<CWallet>> wallets = GetWallets();
-    if (wallets.size() == 1 || (request.fHelp && wallets.size() > 0)) {
+    if (wallets.size() == 1) {
         return wallets[0];
     }
 
-    if (request.fHelp) return nullptr;
-
     if (!HasWallets()) {
         throw JSONRPCError(
             RPC_METHOD_NOT_FOUND, "Method not found (wallet method is disabled because no wallet is loaded)");