[6.14.z] Yield details always, no need to check for SCA eligibility

[Satellite-QE]

Cherrypick of PR: #13141

Problem Statement

• Add Ruff pytest standards #12796 changed the behavior of setup_custom_repo that breaks the tests that depend on it. The fixture has to return/yield details always
• since https://bugzilla.redhat.com/show_bug.cgi?id=2159974 is fixed, we should not need to check for SCA eligibility

Solution

• yield details
• remove SCA eligibility check

[lpramuk]

trigger: test-robottelo
pytest: tests/foreman/cli/test_host.py::test_positive_erratum_applicability tests/foreman/cli/test_host.py::test_syspurpose_end_to_end