Fixes #93: Assume Python 3 is available on Ubuntu 20.04.

https-letsencrypt/main.yml

@@ -1,19 +1,11 @@
 ---
 - hosts: letsencrypt
-  gather_facts: false
   become: true
 
   vars_files:
     - vars/main.yml
 
   pre_tasks:
-    - name: Install Python if not already present.
-      raw: test -e /usr/bin/python || (apt -y update && apt install -y python-minimal)
-      changed_when: false
-
-    - name: Gather facts after Python is definitely present.
-      setup:
-
     - name: Ensure apt cache is updated.
       apt: update_cache=true cache_valid_time=600