Revert "fix: master has db data, but no binlog. a new slave has repli…

…cation_id in its config. this must execute full sync(#2436) (#2444)" (#2460)

This reverts commit ab9ed71.

Co-authored-by: liuchengyu <liuchengyu@360.cn>

src/pika_repl_server_conn.cc

@@ -202,13 +202,6 @@ bool PikaReplServerConn::TrySyncOffsetCheck(const std::shared_ptr<SyncMasterDB>&
     return false;
   }
 
-  if (boffset.filenum == slave_boffset.filenum() && slave_boffset.filenum() == 0 && 
-      boffset.offset == slave_boffset.offset() && slave_boffset.offset() == 0) {
-    LOG(INFO) << "maybe a new master and slave, there is no binlog, but has db data, this need full sync";
-    try_sync_response->set_reply_code(InnerMessage::InnerResponse::TrySync::kSyncPointBePurged);
-    return false;
-  }
-
   PikaBinlogReader reader;
   reader.Seek(db->Logger(), slave_boffset.filenum(), slave_boffset.offset());
   BinlogOffset seeked_offset;