perf: Remove unnecessary imports

Author: fit2cloud-chenyw

frontend/src/router/index.ts

@@ -5,7 +5,6 @@ import LayoutDsl from '@/components/layout/LayoutDsl.vue'
 import SinglePage from '@/components/layout/SinglePage.vue'
 import login from '@/views/login/index.vue'
 import chat from '@/views/chat/index.vue'
-import Datasource from '@/views/ds/Datasource.vue'
 import DashboardEditor from '@/views/dashboard/editor/index.vue'
 import DashboardPreview from '@//views/dashboard/preview/SQPreviewSingle.vue'
 import Dashboard from '@/views/dashboard/index.vue'