Revert "Session에 email도 저장해둔다. 필요할때 꺼내줄 api만들 예정"

This reverts commit 2165a4400b.

core/maingate.go

@@ -587,7 +587,6 @@ func (mg *Maingate) setUserToken(info usertokeninfo) error {
 			"lastupdate":              time.Now().Unix(),
 			"accesstoken":             info.accesstoken,
 			"accesstoken_expire_time": info.accesstoken_expire_time,
-			"email":                   info.email,
 		},
 	}, options.Update().SetUpsert(true))
 	return logger.ErrorWithCallStack(err)
@@ -640,11 +639,6 @@ func (mg *Maingate) getUserTokenWithCheck(platform string, userid string, brinfo
 			info.accesstoken_expire_time = accesstoken_expire_time.(int64)
 		}
 
-		email := found["email"]
-		if email != nil {
-			info.email = email.(string)
-		}
-
 		return info, nil
 	}
 
@@ -682,10 +676,6 @@ func (mg *Maingate) updateUserinfo(info usertokeninfo) (bool, string, string) {
 		return false, "", ""
 	}
 
-	if !(strings.HasPrefix("email", "__dummy_") && strings.HasSuffix("email", "temp__")) {
-		info.email = email
-	}
-
 	mg.setUserToken(info)
 
 	return success, userid, email