refactor: move first run detection to client code

src/qt/test/addressbooktests.cpp

@@ -63,8 +63,7 @@ void TestAddAddressesToSendBook(interfaces::Node& node)
     node.setContext(&test.m_node);
     std::shared_ptr<CWallet> wallet = std::make_shared<CWallet>(node.context()->chain.get(), "", CreateMockWalletDatabase());
     wallet->SetupLegacyScriptPubKeyMan();
-    bool firstRun;
-    wallet->LoadWallet(firstRun);
+    wallet->LoadWallet();
 
     auto build_address = [&wallet]() {
         CKey key;

src/qt/test/wallettests.cpp

@@ -140,8 +140,7 @@ void TestGUI(interfaces::Node& node)
     }
     node.setContext(&test.m_node);
     std::shared_ptr<CWallet> wallet = std::make_shared<CWallet>(node.context()->chain.get(), "", CreateMockWalletDatabase());
-    bool firstRun;
-    wallet->LoadWallet(firstRun);
+    wallet->LoadWallet();
     {
         auto spk_man = wallet->GetOrCreateLegacyScriptPubKeyMan();
         LOCK2(wallet->cs_wallet, spk_man->cs_KeyStore);