Initial support for GME's VGM/SPC playback and tag management.

Co-Authored-By: Jonas Kvinge <jonas@jkvinge.net>

ext/libstrawberry-common/core/messagehandler.h

@@ -35,9 +35,6 @@
 
 class QIODevice;
 
-#define QStringFromStdString(x) QString::fromUtf8((x).data(), (x).size())
-#define DataCommaSizeFromQString(x) (x).toUtf8().constData(), (x).toUtf8().length()
-
 // Reads and writes uint32 length encoded protobufs to a socket.
 // This base QObject is separate from AbstractMessageHandler because moc can't handle templated classes.
 // Use AbstractMessageHandler instead.