Count OSM Places on the movers set on both engines in the open layers scenario

OSM Places draws through one display on every engine now, so on Cesium its
points are a movers set too, not a data source's entities.

scripts/qa-open-layers-switch.mjs

@@ -231,12 +231,10 @@ await strict.run({}, async (b) => {
     await setEnabled('osm-places', true);
     const places = await p.evaluate(() => {
       const d = window.__godsEyeView;
+      // Both engines draw the places as one movers point set.
       const drawn =
-        d.engine.kind === 'navara'
-          ? (d.engine.movers.list().find((set) => set.id === 'osm-places')
-              ?.count ?? 0)
-          : (d.viewer.dataSources.getByName('osm-places')[0]?.entities.values
-              .length ?? 0);
+        d.engine.movers.list().find((set) => set.id === 'osm-places')?.count ??
+        0;
       return {
         records: window.qaModels['osm-places'].getAnalystRecords().length,
         drawn,