Cleanup sudo config

[mcalmer]

What does this PR change?

Cleanup sudoers configuration.

• dropped spacewalk-setup-sudoers: it was only cleanup some configs in /etc/sudoers directly. Since years we already use /etc/sudoers.d/ directory with a standalone file. This "cleanup" should be applied already to all existing Uyuni and SUSE Manager installations
• additionally drop susemanager-upgrade.sh script. It also touches sudoers, but the rest of the functionality is not needed anymore. In the past it was dealing also with oracle DB which is dropped already. This script is not part of our docs, so I think it is obsolete.

Note: user "apache" is already removed from sudoers file.

GUI diff

No difference.

• DONE

Documentation

• No documentation needed: only internal and user invisible changes

• DONE

Test coverage

• No tests: already covered

• DONE

Links

Fixes https://github.com/SUSE/spacewalk/issues/13763

• DONE

Changelogs

Make sure the changelogs entries you are adding are compliant with https://github.com/uyuni-project/uyuni/wiki/Contributing#changelogs and https://github.com/uyuni-project/uyuni/wiki/Contributing#uyuni-projectuyuni-repository

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Re-run a test

If you need to re-run a test, please mark the related checkbox, it will be unchecked automatically once it has re-run:

• Re-run test "changelog_test"
• Re-run test "backend_unittests_pgsql"
• Re-run test "java_pgsql_tests"
• Re-run test "schema_migration_test_pgsql"
• Re-run test "susemanager_unittests"
• Re-run test "javascript_lint"
• Re-run test "spacecmd_unittests"

[mbussolotto]

LGTM

[mcalmer]

failed susemanager_unittests not caused by this PR