refactor: Simplify connection syntax

Author: hebasto

src/qt/bitcoin.cpp

@@ -361,9 +361,7 @@ void BitcoinApplication::initializeResult(bool success)
         if (paymentServer) {
             connect(paymentServer, &PaymentServer::receivedPaymentRequest, window, &BitcoinGUI::handlePaymentRequest);
             connect(window, &BitcoinGUI::receivedURI, paymentServer, &PaymentServer::handleURIOrFile);
-            connect(paymentServer, &PaymentServer::message, [this](const QString& title, const QString& message, unsigned int style) {
-                window->message(title, message, style);
-            });
+            connect(paymentServer, &PaymentServer::message, window, &BitcoinGUI::message);
             QTimer::singleShot(100, paymentServer, &PaymentServer::uiReady);
         }
 #endif

src/qt/bitcoingui.cpp

@@ -564,9 +564,7 @@ void BitcoinGUI::setClientModel(ClientModel *_clientModel)
         connect(_clientModel, &ClientModel::numBlocksChanged, this, &BitcoinGUI::setNumBlocks);
 
         // Receive and report messages from client model
-        connect(_clientModel, &ClientModel::message, [this](const QString &title, const QString &message, unsigned int style){
-            this->message(title, message, style);
-        });
+        connect(_clientModel, &ClientModel::message, this, &BitcoinGUI::message);
 
         // Show progress dialog
         connect(_clientModel, &ClientModel::showProgress, this, &BitcoinGUI::showProgress);

src/qt/walletview.cpp

@@ -97,9 +97,7 @@ void WalletView::setBitcoinGUI(BitcoinGUI *gui)
         connect(sendCoinsPage, &SendCoinsDialog::coinsSent, gui, &BitcoinGUI::gotoHistoryPage);
 
         // Receive and report messages
-        connect(this, &WalletView::message, [gui](const QString &title, const QString &message, unsigned int style) {
-            gui->message(title, message, style);
-        });
+        connect(this, &WalletView::message, gui, &BitcoinGUI::message);
 
         // Pass through encryption status changed signals
         connect(this, &WalletView::encryptionStatusChanged, gui, &BitcoinGUI::updateWalletStatus);