ProjectExplorer: Drop filtering from KitManager::Kits

Only uses twice out of 54 cases, saves a few cycles and bytes
in the others.

Change-Id: I180005d041e3abaf841890d208adfbcb1a51fb74
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

src/plugins/qmlprojectmanager/qmlproject.cpp

@@ -328,7 +328,7 @@ Project::RestoreResult QmlProject::fromMap(const QVariantMap &map, QString *erro
 
     if (!activeTarget()) {
         // find a kit that matches prerequisites (prefer default one)
-        const QList<Kit*> kits = KitManager::kits([this](const Kit *k) {
+        const QList<Kit*> kits = Utils::filtered(KitManager::kits(), [this](const Kit *k) {
             return !containsType(projectIssues(k), Task::TaskType::Error);
         });