hw/intc/s390_flic: Remove the obsolete migration_enabled flag

Now that the machine types that set the migration_enabled flag to
false are gone, we can remove it and the related code.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Message-ID: <20250115073819.15452-5-thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2 files changed