Schema v2: Remove redundant util (#105382)

* Schema v2: Remove redundant util

* FIx lint

public/app/features/dashboard-scene/scene/DashboardScene.tsx

@@ -858,7 +858,3 @@ export class DashboardVariableDependency implements SceneVariableDependencyConfi
     }
   }
 }
-
-export function isV2Dashboard(model: Dashboard | DashboardV2Spec): model is DashboardV2Spec {
-  return 'elements' in model;
-}

public/app/features/dashboard-scene/settings/JsonModelEditView.tsx

@@ -10,6 +10,7 @@ import { Spec as DashboardV2Spec } from '@grafana/schema/dist/esm/schema/dashboa
 import { Alert, Box, Button, CodeEditor, Stack, useStyles2 } from '@grafana/ui';
 import { Page } from 'app/core/components/Page/Page';
 import { getDashboardAPI } from 'app/features/dashboard/api/dashboard_api';
+import { isDashboardV2Spec } from 'app/features/dashboard/api/utils';
 import { getPrettyJSON } from 'app/features/inspector/utils/utils';
 import { DashboardDataDTO, SaveDashboardResponseDTO } from 'app/types';
 
@@ -20,7 +21,7 @@ import {
   isVersionMismatchError,
 } from '../saving/shared';
 import { useSaveDashboard } from '../saving/useSaveDashboard';
-import { DashboardScene, isV2Dashboard } from '../scene/DashboardScene';
+import { DashboardScene } from '../scene/DashboardScene';
 import { NavToolbarActions } from '../scene/NavToolbarActions';
 import { transformSaveModelSchemaV2ToScene } from '../serialization/transformSaveModelSchemaV2ToScene';
 import { transformSaveModelToScene } from '../serialization/transformSaveModelToScene';
@@ -66,7 +67,7 @@ export class JsonModelEditView extends SceneObjectBase<JsonModelEditViewState> i
     const jsonModel: DashboardDataDTO | DashboardV2Spec = JSON.parse(this.state.jsonText);
     const dashboard = this.getDashboard();
 
-    const isV2 = isV2Dashboard(jsonModel);
+    const isV2 = isDashboardV2Spec(jsonModel);
     let newDashboardScene: DashboardScene;
 
     if (isV2) {