remove update tasks, since we use updated images

Signed-off-by: Martin Schurz <Martin.Schurz@telekom.de>

molecule/os_hardening_vm/prepare.yml

@@ -22,23 +22,6 @@
         ansible_python_interpreter: /usr/bin/python3
       when: ansible_facts.distribution == 'Fedora'
 
-    - name: Block update of Grub and kernel, because of error # noqa ignore-errors
-      ansible.builtin.dpkg_selections:
-        name: "{{ item }}"
-        selection: hold
-      when: ansible_os_family == 'Debian'
-      ignore_errors: true
-      loop:
-        - grub-pc
-        - initramfs-tools
-        - linux-image-generic
-
-    - name: Run the equivalent of "apt-get update && apt-get upgrade"
-      ansible.builtin.apt:
-        upgrade: safe
-        update_cache: true
-      when: ansible_os_family == 'Debian'
-
     - name: Install required tools on SuSE
       # cannot use zypper module, since it depends on python-xml
       ansible.builtin.command: zypper -n install python-xml