qt, wallet, refactor: Move connection to QObject::deleteLater to ctor

Author: hebasto

src/qt/bitcoingui.cpp

@@ -107,7 +107,6 @@ BitcoinGUI::BitcoinGUI(interfaces::Node& node, const PlatformStyle *_platformSty
         walletFrame = new WalletFrame(_platformStyle, this);
         connect(walletFrame, &WalletFrame::createWalletButtonClicked, [this] {
             auto activity = new CreateWalletActivity(getWalletController(), this);
-            connect(activity, &CreateWalletActivity::finished, activity, &QObject::deleteLater);
             activity->create();
         });
         connect(walletFrame, &WalletFrame::message, [this](const QString& title, const QString& message, unsigned int style) {
@@ -416,7 +415,6 @@ void BitcoinGUI::createActions()
                 connect(action, &QAction::triggered, [this, path] {
                     auto activity = new OpenWalletActivity(m_wallet_controller, this);
                     connect(activity, &OpenWalletActivity::opened, this, &BitcoinGUI::setCurrentWallet);
-                    connect(activity, &OpenWalletActivity::finished, activity, &QObject::deleteLater);
                     activity->open(path);
                 });
             }
@@ -431,7 +429,6 @@ void BitcoinGUI::createActions()
         connect(m_create_wallet_action, &QAction::triggered, [this] {
             auto activity = new CreateWalletActivity(m_wallet_controller, this);
             connect(activity, &CreateWalletActivity::created, this, &BitcoinGUI::setCurrentWallet);
-            connect(activity, &CreateWalletActivity::finished, activity, &QObject::deleteLater);
             activity->create();
         });
         connect(m_close_all_wallets_action, &QAction::triggered, [this] {

src/qt/walletcontroller.cpp

@@ -191,6 +191,7 @@ WalletControllerActivity::WalletControllerActivity(WalletController* wallet_cont
     , m_wallet_controller(wallet_controller)
     , m_parent_widget(parent_widget)
 {
+    connect(this, &WalletControllerActivity::finished, this, &QObject::deleteLater);
 }
 
 void WalletControllerActivity::showProgressDialog(const QString& label_text)