rename or remove test scenarios of grub2_audit_argument rule

some of those scenarios were moved to the folder with template test scenarios in the previous commit
Also make some scenarios applicable to all platforms. Especially those which check configuration in /etc/default/grub because these are common for all products.

Author: vojtapolasek

linux_os/guide/auditing/grub2_audit_argument/tests/arg_not_there_etcdefaultgrub_recovery_disabled.fail.sh

@@ -1,11 +1,6 @@
 #!/bin/bash
 
-# platform = multi_platform_fedora,multi_platform_ol,multi_platform_rhel,multi_platform_ubuntu
-{{%- if 'ubuntu' in product %}}
-# packages = grub2
-{{%- else %}}
-# packages = grub2,grubby
-{{%- endif %}}
+# platform = multi_platform_all
 
 source common.sh