Thank you I deleted it, search in google link: jithinchempodil[dot]wordpress[dot]com/2017/07/21/how-to-remove-restricted-user-in-sql-server/

Error last time deleting:

Alter failed for database 'EESrRecV20' (mycrosoft.sqlserver.smo)

Changes to the state or options of database 'EESrRecV20' cannot be made at...