Use Q_DISABLE_COPY

src/libtomahawk/utils/Closure.cpp

@@ -112,20 +112,6 @@ void Closure::Cleanup() {
   deleteLater();
 }
 
-Closure::Closure(const Closure &)
-    : QObject()
-{
-    // This should not be called.
-    Q_ASSERT( false );
-}
-
-Closure &Closure::operator=(const Closure &)
-{
-    // This should not be called.
-    Q_ASSERT( false );
-    return *this;
-}
-
 }  // namespace _detail
 
 _detail::Closure* NewClosure(

src/libtomahawk/utils/Closure.h

@@ -84,8 +84,7 @@ class DLLEXPORT Closure : public QObject {
   void Cleanup();
 
  private:
-  Closure( const Closure& );
-  Closure& operator=( const Closure& );
+  Q_DISABLE_COPY(Closure)
 
   void Connect(QObject* sender, const char* signal);