refac: 더는 필요없어진 betting table 삭제

hwe/sql/reset.sql

@@ -50,7 +50,6 @@ DROP TABLE IF EXISTS general_record;
 DROP TABLE IF EXISTS select_npc_token;
 DROP TABLE IF EXISTS select_pool;
 
-DROP TABLE IF EXISTS betting;
 DROP TABLE IF EXISTS rank_data;
 
 DROP TABLE IF EXISTS reserved_open;