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/coreplugin/id.cpp

@@ -160,14 +160,6 @@ Id::Id(const char *name)
     : m_id(theId(name, 0))
 {}
 
-/*!
-    \overload
-
-*/
-Id::Id(const QByteArray &name)
-   : m_id(theId(name))
-{}
-
 /*!
   Returns an internal representation of the id.
 */