[YAML thing provider] Remove unsued and unneeded variable "modelLoaded" (#5362)

Signed-off-by: Laurent Garnier <lg.hc@free.fr>

Author: lolodomo

bundles/org.openhab.core.model.yaml/src/main/java/org/openhab/core/model/yaml/internal/things/YamlThingProvider.java

@@ -43,7 +43,6 @@
 import org.openhab.core.model.yaml.YamlModelListener;
 import org.openhab.core.service.ReadyMarker;
 import org.openhab.core.service.ReadyService;
-import org.openhab.core.service.StartLevelService;
 import org.openhab.core.thing.Channel;
 import org.openhab.core.thing.ChannelUID;
 import org.openhab.core.thing.Thing;
@@ -126,8 +125,6 @@ public void run() {
         }
     };
 
-    private boolean modelLoaded = false;
-
     private @Nullable Thread lazyRetryThread;
 
     private record QueueContent(ThingHandlerFactory thingHandlerFactory, ThingTypeUID thingTypeUID,
@@ -259,10 +256,7 @@ public void unsetReadyService(final ReadyService readyService) {
 
     @Override
     public void onReadyMarkerAdded(ReadyMarker readyMarker) {
-        String type = readyMarker.getType();
-        if (StartLevelService.STARTLEVEL_MARKER_TYPE.equals(type)) {
-            modelLoaded = Integer.parseInt(readyMarker.getIdentifier()) >= StartLevelService.STARTLEVEL_MODEL;
-        } else if (XML_THING_TYPE.equals(type)) {
+        if (XML_THING_TYPE.equals(readyMarker.getType())) {
             String bsn = readyMarker.getIdentifier();
             loadedXmlThingTypes.add(bsn);
             thingHandlerFactories.stream().filter(factory -> bsn.equals(getBundleName(factory))).forEach(factory -> {