Refactor git key file remove

- Add a task to collect check if git key file exists
- Remove git key file if it exists and django_remove_git_key == True

tasks/install.yml

@@ -85,16 +85,22 @@
     - django_git_key is defined
     - django_git_key is not none
 
+- name: Check if Git key file exists
+  stat:
+    path: "{{ django_system_user_home }}/.ssh/{{ django_git_key_filename }}"
+    register: django_git_key_file
+  when:
+    - django_remove_git_key == True
+
 - name: Remove Git Key
   file:
     state: absent
     path: "{{ django_system_user_home }}/.ssh/{{ django_git_key_filename }}"
   become: True
   become_user: "{{ django_system_user }}"
   when:
-    - django_git_key is defined
-    - django_git_key is not none
     - django_remove_git_key == True
+    - django_git_key_file.stat.exists
 
 - name: Git clone without key
   git: