Move back iproute install to system_packages

Packages are now installed before network facts collection, so we can
install iproute with the rest.

roles/bootstrap-os/tasks/centos.yml

@@ -116,14 +116,3 @@
     name: "{{ ((ansible_distribution_major_version | int) < 8) | ternary('libselinux-python', 'python3-libselinux') }}"
     state: present
   become: true
-
-# iproute is required for networking related facts gathering
-# See https://docs.ansible.com/ansible/latest/playbook_guide/playbooks_vars_facts.html#package-requirements-for-fact-gathering
-# Note: It is not recommended way, but since the tasks execution order, put it here is the simplest way so far. We can move it to a proper place later.
-# TODO: move this to roles/kubernetes/preinstall/vars/main.yml -> pkgs variables
-# Currently not possible because the collect the network facts before that step, needs reordering of the exec flow.
-- name: Ensure iproute is installed
-  package:
-    name: iproute
-    state: present
-  become: true