migration/RDMA: It is accounting for zero/normal pages in two places

Remove the one in control_save_page().

Reviewed-by: Leonardo Bras <leobras@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Message-Id: <20230515195709.63843-12-quintela@redhat.com>

migration/ram.c

@@ -1204,13 +1204,6 @@ static bool control_save_page(PageSearchStatus *pss, RAMBlock *block,
     if (ret == RAM_SAVE_CONTROL_DELAYED) {
         return true;
     }
-
-    if (bytes_xmit > 0) {
-        stat64_add(&mig_stats.normal_pages, 1);
-    } else if (bytes_xmit == 0) {
-        stat64_add(&mig_stats.zero_pages, 1);
-    }
-
     return true;
 }