remove duplicated code (#396)

* remove duplicated code

* partical revert

---------

Co-authored-by: dom <githubaccount56556@proton.me>

lib/http/black.dart

@@ -19,31 +19,4 @@ class BlackHttp {
       return LoadingState.error(res.data['message']);
     }
   }
-
-  // 移除黑名单
-  static Future removeBlack({required int fid}) async {
-    var res = await Request().post(
-      Api.removeBlack,
-      queryParameters: {
-        'act': 6,
-        'csrf': await Request.getCsrf(),
-        'fid': fid,
-        'jsonp': 'jsonp',
-        're_src': 116,
-      },
-    );
-    if (res.data['code'] == 0) {
-      return {
-        'status': true,
-        'data': [],
-        'msg': '操作成功',
-      };
-    } else {
-      return {
-        'status': false,
-        'data': [],
-        'msg': res.data['message'],
-      };
-    }
-  }
 }