a11y atspi: Drop commented out "say hello to d-bus" code

This looks like a remnant of previous WIP code and was
added in commit 8e1ff45e74
("Add Linux Accessibility Bridge").

Change-Id: I8fab2c3554af101ed134715a4d4a494bdb01fc98
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>

src/gui/accessible/linux/atspiadaptor.cpp

@@ -1190,9 +1190,6 @@ void AtSpiAdaptor::childrenChanged(QAccessibleInterface *interface) const
 
 void AtSpiAdaptor::notifyAboutCreation(QAccessibleInterface *interface) const
 {
-//    // say hello to d-bus
-//    cache->emitAddAccessible(accessible->getCacheItem());
-
     // notify about the new child of our parent
     QAccessibleInterface * parent = interface->parent();
     if (!parent) {