Allowing to change parent during waiting rebuild.

src/clog/ob_log_cascading_mgr.cpp

@@ -1649,12 +1649,6 @@ int ObLogCascadingMgr::check_parent_state(const int64_t now, const common::ObReg
             }
             last_check_log_ts_ = next_replay_log_ts;
             last_check_parent_time_ = now;
-          } else if (state_mgr_->is_need_rebuild()) {
-            if (REACH_TIME_INTERVAL(5 * 1000 * 1000)) {
-              CLOG_LOG(INFO, "wait rebuild", K_(partition_key));
-            }
-            last_check_log_ts_ = next_replay_log_ts;
-            last_check_parent_time_ = now;
           } else if (last_check_log_ts_ == next_replay_log_ts && need_update_parent_()) {
             // self is unsync && reach time interval, need update parent
             if (partition_reach_time_interval(5 * 60 * 1000 * 1000, check_parent_invalid_warn_time_)) {