[kubernetes] drop pre 1.22.0 workarounds

roles/kubernetes/node/tasks/kubelet.yml

@@ -1,13 +1,4 @@
 ---
-- name: Make sure dynamic kubelet configuration directory is writeable
-  file:
-    path: "{{ dynamic_kubelet_configuration_dir }}"
-    mode: 0600
-    state: directory
-  when:
-    - dynamic_kubelet_configuration
-    - kube_version is version('v1.22.0', '<')
-
 - name: Set kubelet api version to v1beta1
   set_fact:
     kubeletConfig_api_version: v1beta1

roles/kubernetes/node/templates/kubelet.env.v1beta1.j2

@@ -18,9 +18,6 @@ KUBELET_HOSTNAME="--hostname-override={{ kube_override_hostname }}"
 --container-runtime=remote \
 --container-runtime-endpoint=unix://{{ cri_socket }} \
 {% endif %}
-{% if dynamic_kubelet_configuration and kube_version is version('v1.22.0', '<') %}
---dynamic-config-dir={{ dynamic_kubelet_configuration_dir }} \
-{% endif %}
 --runtime-cgroups={{ kubelet_runtime_cgroups }} \
 {% endset %}