remove an unnecessary task in ssh setup

Former-commit-id: 26ceae34

roles/ssh-password-login/tasks/main.yml

@@ -10,19 +10,7 @@
   - restart sshd
   - restart ssh
 
-- name: "Enable Challenge Response"
-  lineinfile:
-  args:
-    dest: /etc/ssh/sshd_config
-    regexp: "PasswordAuthentication no"
-    line: "PasswordAuthentication yes"
-    backrefs: yes
-  sudo: true
-  notify: 
-  - restart sshd
-  - restart ssh
-
-- name: "Disable Challenge Response"
+- name: "Disable Password"
   lineinfile:
   args:
     dest: /etc/ssh/sshd_config