KitManager: Get rid of KitMatcher class

Use std::function instead. Clean up API while at it.

Change-Id: I6e401ab57f5375e36710c30508c596af3f4b3385
Reviewed-by: Tim Jenssen <tim.jenssen@qt.io>
Reviewed-by: Eike Ziller <eike.ziller@qt.io>

src/plugins/debugger/analyzer/startremotedialog.cpp

@@ -64,7 +64,7 @@ StartRemoteDialog::StartRemoteDialog(QWidget *parent)
     setWindowTitle(tr("Start Remote Analysis"));
 
     d->kitChooser = new KitChooser(this);
-    d->kitChooser->setKitMatcher([](const Kit *kit) {
+    d->kitChooser->setKitPredicate([](const Kit *kit) {
         const IDevice::ConstPtr device = DeviceKitInformation::device(kit);
         return kit->isValid() && device && !device->sshParameters().host.isEmpty();
     });