Remove deprecated rebuild of initrd

Signed-off-by: Martin Schurz <[email protected]>

roles/os_hardening/README.md

@@ -839,11 +839,6 @@ This role is mostly based on guides by:
   - Description: kernel is crashing or otherwise misbehaving and a kernel core dump is created.
   - Type: bool
   - Required: no
-- `os_security_kernel_enable_module_loading`
-  - Default: `true`
-  - Description: true if you want to allowed to change kernel modules once the system is running (eg `modprobe`, `rmmod`). WARNING - Rebuilding initramfs is deprecated and will be removed in the next major release. For more information take a look at this issue <https://github.com/dev-sec/ansible-collection-hardening/pull/591>
-  - Type: bool
-  - Required: no
 - `os_security_packages_clean`
   - Default: `true`
   - Description: removes packages with known issues. See section packages.