Fix misimplemented 'unlinkRichMenuFromUser' client API

Resolve #59.

'unlinkRichMenuFromUser' URI shouldn't include richmenu ID.

Author: Hyunje Jun

lib/client.ts

@@ -143,11 +143,8 @@ export default class Client {
     return this.post(URL.userRichMenu(userId, richMenuId));
   }
 
-  public unlinkRichMenuFromUser(
-    userId: string,
-    richMenuId: string,
-  ): Promise<any> {
-    return this.delete(URL.userRichMenu(userId, richMenuId));
+  public unlinkRichMenuFromUser(userId: string): Promise<any> {
+    return this.delete(URL.userRichMenu(userId));
   }
 
   public getRichMenuImage(richMenuId: string): Promise<Readable> {

test/client.spec.ts

@@ -248,15 +248,13 @@ describe("client", () => {
   });
 
   it("unlinkRichMenuFromUser", () => {
-    return client
-      .unlinkRichMenuFromUser("test_user_id", "test_rich_menu_id")
-      .then((res: any) => {
-        const req = getRecentReq();
-        equal(req.headers.authorization, "Bearer test_channel_access_token");
-        equal(req.path, "/user/test_user_id/richmenu/test_rich_menu_id");
-        equal(req.method, "DELETE");
-        deepEqual(res, {});
-      });
+    return client.unlinkRichMenuFromUser("test_user_id").then((res: any) => {
+      const req = getRecentReq();
+      equal(req.headers.authorization, "Bearer test_channel_access_token");
+      equal(req.path, "/user/test_user_id/richmenu");
+      equal(req.method, "DELETE");
+      deepEqual(res, {});
+    });
   });
 
   it("setRichMenuImage", () => {