[ISSUE #6450]Remove useless code from pull_message_processor.rs (#6524)

* issue-6450

* issue-6450

* issue-6450

* issue-6450

* issue-6450

* issue-6450

Author: oopscompiled

rocketmq-broker/src/out_api/broker_outer_api.rs

@@ -733,6 +733,7 @@ impl BrokerOuterAPI {
             ResponseCode::TopicNotExist if allow_topic_not_exist => {
                 warn!("get Topic [{}] RouteInfoFromNameServer is not exist value", topic);
             }
+            ResponseCode::TopicNotExist => {}
             ResponseCode::Success => {
                 if let Some(body) = response.body() {
                     let topic_route_data = TopicRouteData::decode(body).unwrap();

rocketmq-broker/src/processor/pull_message_processor.rs

@@ -227,9 +227,7 @@ where
         let phy_queue_offset = mapping_item.compute_physical_queue_offset(global_offset);
         request_header.queue_id = phy_queue_id;
         request_header.queue_offset = phy_queue_offset;
-        if mapping_item.check_if_end_offset_decided()
-        /* && request_header.max_msg_nums.is_some() */
-        {
+        if mapping_item.check_if_end_offset_decided() {
             request_header.max_msg_nums = std::cmp::min(
                 (mapping_item.end_offset - mapping_item.start_offset) as i32,
                 request_header.max_msg_nums,