crimson/osd/pg_backend: rep_op_ret_t to not return acked_peers

Cleanup, no longer used.

Signed-off-by: Matan Breizman <[email protected]>
Signed-off-by: Xuehan Xu <[email protected]>

Author: Matan-B

src/crimson/osd/ec_backend.cc

@@ -33,6 +33,5 @@ ECBackend::submit_transaction(const std::set<pg_shard_t> &pg_shards,
 			      std::vector<pg_log_entry_t>&& log_entries)
 {
   // todo
-  return make_ready_future<rep_op_ret_t>(seastar::now(),
-	  seastar::make_ready_future<crimson::osd::acked_peers_t>());
+  return make_ready_future<rep_op_ret_t>(seastar::now(), seastar::now());
 }

src/crimson/osd/pg_backend.h

@@ -62,7 +62,7 @@ class PGBackend
       ::crimson::osd::IOInterruptCondition, T>;
   using rep_op_ret_t = 
     std::tuple<interruptible_future<>,
-	       interruptible_future<crimson::osd::acked_peers_t>>;
+	       interruptible_future<>>;
   using rep_op_fut_t = interruptible_future<rep_op_ret_t>;
   PGBackend(shard_id_t shard, CollectionRef coll,
             crimson::osd::ShardServices &shard_services,

src/crimson/osd/replicated_backend.cc

@@ -188,8 +188,7 @@ ReplicatedBackend::submit_transaction(
     if (!to_push_delete.empty()) {
       pg.enqueue_delete_for_backfill(hoid, {}, to_push_delete);
     }
-    return seastar::make_ready_future<
-      crimson::osd::acked_peers_t>(std::move(acked_peers));
+    return seastar::now();
   });
 
   auto sends_complete = seastar::when_all_succeed(