Use DataStream where possible

src/qt/recentrequeststablemodel.cpp

@@ -175,7 +175,7 @@ void RecentRequestsTableModel::addNewRequest(const SendCoinsRecipient &recipient
     newEntry.date = QDateTime::currentDateTime();
     newEntry.recipient = recipient;
 
-    CDataStream ss(SER_DISK, CLIENT_VERSION);
+    DataStream ss{};
     ss << newEntry;
 
     if (!walletModel->wallet().setAddressReceiveRequest(DecodeDestination(recipient.address.toStdString()), ToString(newEntry.id), ss.str()))
@@ -188,7 +188,7 @@ void RecentRequestsTableModel::addNewRequest(const SendCoinsRecipient &recipient
 void RecentRequestsTableModel::addNewRequest(const std::string &recipient)
 {
     std::vector<uint8_t> data(recipient.begin(), recipient.end());
-    CDataStream ss(data, SER_DISK, CLIENT_VERSION);
+    DataStream ss{data};
 
     RecentRequestEntry entry;
     ss >> entry;

src/qt/test/wallettests.cpp

@@ -289,7 +289,7 @@ void TestGUI(interfaces::Node& node)
     std::vector<std::string> requests = walletModel.wallet().getAddressReceiveRequests();
     QCOMPARE(requests.size(), size_t{1});
     RecentRequestEntry entry;
-    CDataStream{MakeUCharSpan(requests[0]), SER_DISK, CLIENT_VERSION} >> entry;
+    DataStream{MakeUCharSpan(requests[0])} >> entry;
     QCOMPARE(entry.nVersion, int{1});
     QCOMPARE(entry.id, int64_t{1});
     QVERIFY(entry.date.isValid());