Please ask your question in English, that makes life easier for everyone to understand.
You're asking how to delete a record which you entered in a simulation environment.
When you have no license, you can make use of the Sandbox environment of Mendix, this is free of charge and deploys to yourappname-sandbox.mxapps.io You can remove this environment by clicking “Unlink your app” in the Environment section of your application.
When you want to delete a record of your entity you could add a Delete button on top of a datagrid listing the records of your entity.
Hopefully this helps a bit.