[6.14.z] remove user to prevent ForeignKeyViolation

[Satellite-QE]

Cherrypick of PR: #17024

Problem -
When creating another user with a specific role and adding resources in the filter with the 'view_facts' permission, an error occurred ('PG::ForeignKeyViolation: ERROR: update or delete on table "hosts" violates foreign key constraint "fact_values_host_id_fk" on table "fact_values"') during the teardown process while deleting the host. This happened because a user with only view permissions existed for the host and making it impossible to update or delete the user associated with the fact.

Solution -
To prevent this error, the user was removed before the teardown process.

[Satellite-QE]

trigger: test-robottelo
pytest: tests/foreman/api/test_ansible.py::TestAnsibleCfgMgmt -k test_positive_read_facts_with_filter

[Satellite-QE]

PRT Result

Build Number: 10100
Build Status: UNSTABLE
PRT Comment: pytest tests/foreman/api/test_ansible.py::TestAnsibleCfgMgmt -k test_positive_read_facts_with_filter --external-logging
Test Result : ===== 2 passed, 3 deselected, 169 warnings, 1 error in 1512.68s (0:25:12) ======

[amolpati30]

trigger: test-robottelo
pytest: tests/foreman/api/test_ansible.py::TestAnsibleCfgMgmt -k test_positive_read_facts_with_filter

[Satellite-QE]

PRT Result

Build Number: 10106
Build Status: UNSTABLE
PRT Comment: pytest tests/foreman/api/test_ansible.py::TestAnsibleCfgMgmt -k test_positive_read_facts_with_filter --external-logging
Test Result : ===== 2 passed, 3 deselected, 128 warnings, 1 error in 1190.70s (0:19:50) ======