librbd: drop DiffIterate::diff_object_map() declaration

This is a leftover from commit 2b3a46801d39 ("librbd: switch
diff-iterate API to use new object-map diff helper").

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
(cherry picked from commit 1503b96bf91d358540fc56a69b3cf18aa7eab68e)

diff --git a/src/librbd/api/DiffIterate.h b/src/librbd/api/DiffIterate.h
index 8ce7f6afd7c30a684cb1ce8dd7ed130f0c9631a8..c53b0e995b6d0cb05c9169e2ec9f6490070bb692 100644 (file)
--- a/src/librbd/api/DiffIterate.h
+++ b/src/librbd/api/DiffIterate.h
@@ -55,10 +55,6 @@ private:
   std::pair<uint64_t, uint64_t> calc_object_diff_range();
 
   int execute();
-
-  int diff_object_map(uint64_t from_snap_id, uint64_t to_snap_id,
-                      BitVector<2>* object_diff_state);
-
 };
 
 } // namespace api