Core: Remove Core::Id(QByteArray) constructor

This was mostly used to disambiguate the char * and the QString
constructors.

Change-Id: Ib6923ef8e8c0e5d514a883e73aa001a1cd9fb534
Reviewed-by: Eike Ziller <eike.ziller@digia.com>

src/plugins/macros/macroevent.cpp

@@ -100,7 +100,7 @@ void MacroEvent::load(QDataStream &stream)
 {
     QByteArray ba;
     stream >> ba;
-    d->id = Core::Id(ba);
+    d->id = Core::Id::fromName(ba);
     int count;
     stream >> count;
     quint8 id;