diff --git a/packages/alova/src/shared.ts b/packages/alova/src/shared.ts
deleted file mode 100644
index 70e628ef..00000000
--- a/packages/alova/src/shared.ts
+++ /dev/null
@@ -1,3 +0,0 @@
-export function isJSON(contentType: string) {
-  return contentType.includes('application/json');
-}