Remove legacy tasks that were scheduled for cleanup (#12765)

Signed-off-by: Ali Afsharzadeh <afsharzadeh8@gmail.com>

roles/reset/tasks/main.yml

@@ -432,16 +432,6 @@
     - files
     - dns
 
-  # TODO: remove after release 2.29
-- name: Reset | remove host entries from /etc/hosts
-  blockinfile:
-    path: "/etc/hosts"
-    state: absent
-    marker: "# Ansible inventory hosts {mark}"
-  tags:
-    - files
-    - dns
-
 - name: Reset | include file with reset tasks specific to the network_plugin if exists
   include_role:
     name: "network_plugin/{{ kube_network_plugin }}"