cls: remove unused variable

to silence following warning:

```
/home/kefu/dev/ceph/src/cls/rgw/cls_rgw_types.cc: In static member function ‘static std::__cxx11::list<rgw_bucket_dir> rgw_bucket_dir::generate_test_instances()’:
/home/kefu/dev/ceph/src/cls/rgw/cls_rgw_types.cc:736:11: warning: variable ‘i’ set but not used [-Wunused-but-set-variable=]
  736 |   uint8_t i = 0;
      |           ^
```

Signed-off-by: Kefu Chai <k.chai@proxmox.com>

diff --git a/src/cls/rgw/cls_rgw_types.cc b/src/cls/rgw/cls_rgw_types.cc
index cc9f9e3ec43a234a2042231588cb7802c86cb876..7f8835bd93877b27007ac7787a50e474eb458245 100644 (file)
--- a/src/cls/rgw/cls_rgw_types.cc
+++ b/src/cls/rgw/cls_rgw_types.cc
@@ -741,8 +741,7 @@ list<rgw_bucket_dir> rgw_bucket_dir::generate_test_instances()
 
   list<rgw_bucket_dir_header> l = rgw_bucket_dir_header::generate_test_instances();
 
-  uint8_t i = 0;
-  for (auto iter = l.begin(); iter != l.end(); ++iter, ++i) {
+  for (auto iter = l.begin(); iter != l.end(); ++iter) {
     rgw_bucket_dir d;
     rgw_bucket_dir_header& h = *iter;
     d.header = h;