fix(core-app): CB-898 remove unnecessary code

webapp/packages/core-app/src/CoreSettingsService.ts

@@ -15,7 +15,7 @@ const defaultSettings = {
   'app.logViewer.logBatchSize': 2000,
   'app.logViewer.maxFailedRequests': 3,
   // temporary limit for all nodes children in app
-  'app.childrenLimit': 500,
+  'app.navigationTree.childrenLimit': 500,
 };
 
 export type CoreSettings = typeof defaultSettings;

webapp/packages/core-app/src/NavigationTree/NavigationTreeService.ts

@@ -72,13 +72,7 @@ export class NavigationTreeService {
   }
 
   getChildren(id: string): string[] | undefined {
-    const children = this.navTreeResource.get(id);
-
-    if (children) {
-      return children.slice(0, this.navTreeResource.childrenLimit);
-    }
-
-    return children;
+    return this.navTreeResource.get(id);
   }
 
   async navToNode(id: string, parentId: string): Promise<void> {

webapp/packages/core-app/src/shared/NodesManager/NavTreeResource.ts

@@ -41,7 +41,7 @@ export class NavTreeResource extends CachedMapResource<string, string[]> {
   protected metadata: MetadataMap<string, INodeMetadata>;
 
   get childrenLimit(): number {
-    return this.coreSettingsService.settings.getValue('app.childrenLimit');
+    return this.coreSettingsService.settings.getValue('app.navigationTree.childrenLimit');
   }
 
   constructor(