diff --git a/role.proto b/role.proto
index 1ab17ec..944499a 100644
--- a/role.proto
+++ b/role.proto
@@ -67,10 +67,6 @@ message RoleStartBattleReq {
   int32 carbon_id = 2;
 }
 
-message DropReward {
-  map<string,int32> reward = 1;
-}
-
 message RoleStartBattleRsp {
   int32 cur_sp = 1;
   string drop_reward = 2;
--
libgit2 0.21.2