Remove some old checks

roles/custom/matrix-base/tasks/main.yml

@@ -1,9 +1,5 @@
 ---
 
-- ansible.builtin.import_tasks: "{{ role_path }}/tasks/system_check.yml"
-  tags:
-    - always
-
 - ansible.builtin.import_tasks: "{{ role_path }}/tasks/sanity_check.yml"
   tags:
     - setup-all

roles/custom/matrix-base/tasks/system_check.yml

@@ -1,23 +0,0 @@
----
-
-# We generally support Ansible 2.7.1 and above.
-- name: Fail if running on Ansible < 2.7.1
-  ansible.builtin.fail:
-    msg: "You are running on Ansible {{ ansible_version.string }}, which is not supported. See our guide about Ansible: https://github.com/spantaleev/matrix-docker-ansible-deploy/blob/master/docs/ansible.md"
-  when:
-    - "(ansible_version.major < 2) or (ansible_version.major == 2 and ansible_version.minor < 7) or (ansible_version.major == 2 and ansible_version.minor == 7 and ansible_version.revision < 1)"
-
-# Though we do not support Ansible 2.9.6 which is buggy
-- name: Fail if running on Ansible 2.9.6 on Ubuntu
-  ansible.builtin.fail:
-    msg: "You are running on Ansible {{ ansible_version.string }}, which is not supported. See our guide about Ansible: https://github.com/spantaleev/matrix-docker-ansible-deploy/blob/master/docs/ansible.md"
-  when:
-    - ansible_distribution == 'Ubuntu'
-    - "ansible_version.major == 2 and ansible_version.minor == 9 and ansible_version.revision == 6"
-
-- name: Fail if using python2 on Archlinux
-  ansible.builtin.fail:
-    msg: "Detected that you're using python2 when installing onto Archlinux. Archlinux by default only supports python3."
-  when:
-    - ansible_distribution == 'Archlinux'
-    - ansible_python.version.major != 3