preinstall: remove old Fedora task

Signed-off-by: Etienne Champetier <champetier.etienne@gmail.com>

roles/kubernetes/preinstall/tasks/0070-system-packages.yml

@@ -25,21 +25,6 @@
     - ansible_distribution in ["CentOS","RedHat","OracleLinux"]
     - not is_fedora_coreos
 
-- name: Install python-dnf for latest RedHat versions
-  command: dnf install -y python-dnf yum
-  register: dnf_task_result
-  until: dnf_task_result is succeeded
-  retries: 4
-  delay: "{{ retry_stagger | random + 3 }}"
-  when:
-    - ansible_distribution == "Fedora"
-    - ansible_distribution_major_version|int > 21
-    - ansible_distribution_major_version|int <= 29
-    - not is_fedora_coreos
-  changed_when: False
-  tags:
-    - bootstrap-os
-
 - name: Install python3-dnf for latest RedHat versions
   command: dnf install -y python3-dnf
   register: dnf_task_result