How to remove 'role' for user in Postgres db?

Question

PostgreSQL

There is a database 'ef' and a user 'rightuser'.
I dump the database 'pg_dump -h localhost -U rightuser -F c -f dumpfile ef'
Then I share the restore from the dumpfile `pg_restore -h localhost -U rightuser -F c -d ef dumpfile`
Then I run my application, everything works, but when restoring from dumpfile, i get this.

pg_restore: [archiver (db)] Error from TOC entry 3366; 0 0 ACL SEQUENCE socialaccount_socialapp_id_seq rightuser
pg_restore: [archiver (db)] could not execute query: ERROR:  role "efuser" does not exist
    Command was: GRANT ALL ON SEQUENCE public.socialaccount_socialapp_id_seq TO efuser;

There actually go exactly the same error but to other tables in the database.
How do I get rid of this user `efuser`. I remember that I created this user a month ago and gave him various privileges. Maybe just remove `efuser` from the database, or revoke all privileges for this user?

In that base from which I do dump, there is a user 'efuser'. But in the database where I upload the dumpfile, there is no 'efuser' user there.