Forgot to delete wrong comments in CheckIn.ts

server/src/db/models/CheckIn.ts

@@ -34,16 +34,13 @@ CheckIn.init(
     checkin: {
       type: DataTypes.DATE,
       allowNull: false,
-      //  primaryKey: true,
     },
     checkout: {
       type: DataTypes.DATE,
       allowNull: false,
-      //   primaryKey: true
     },
     clientID: {
       type: DataTypes.INTEGER,
-      //   primaryKey: true,
       references: {
         model: "customer",
         key: "id",