Useless connect is useless.

ControlConnection's finished() triggers deleteLater(), which calls
Source::setOffline(). For this reason, finished() does not need to be
connected to setOffline(), because this causes a race condition.

src/libtomahawk/Source.cpp

@@ -88,8 +88,6 @@ void
 Source::setControlConnection( ControlConnection* cc )
 {
     m_cc = cc;
-    if ( cc )
-        connect( cc, SIGNAL( finished() ), SLOT( setOffline() ), Qt::QueuedConnection );
 }