- remove useless legacy codes.

- refactor models

business/model/legacymodel/config.go

@@ -0,0 +1,8 @@
+package legacymodel
+
+type Config struct {
+	Id         int
+	Thirdparty string `orm:"size(20);unique"`
+	Token      string `orm:"size(300)"`
+	Date       string `orm:"size(30)"`
+}