[backend] Fix deepscan (#6374)

opencti-platform/opencti-graphql/src/graphql/sseMiddleware.js

@@ -43,7 +43,7 @@ import { findFiltersFromKey } from '../utils/filtering/filtering-utils';
 import { convertFiltersToQueryOptions } from '../utils/filtering/filtering-resolution';
 import { getParentTypes } from '../schema/schemaUtils';
 import { STIX_EXT_OCTI } from '../types/stix-extensions';
-import { listAllEntities, listAllRelations } from '../database/middleware-loader';
+import { listAllRelations } from '../database/middleware-loader';
 import { RELATION_OBJECT } from '../schema/stixRefRelationship';
 import { getEntitiesListFromCache } from '../database/cache';
 import { ENTITY_TYPE_STREAM_COLLECTION } from '../schema/internalObject';