Remove broken conditionals for Ansible 2.19

Ansible 2.19 no longer allows impliction boolean conversions. Given
those conditions where not necessary in the first place, remove the
registers created for them as well.

See https://ansible.readthedocs.io/projects/ansible-core/devel/porting_guides/porting_guide_core_2.19.html#broken-conditionals

Author: sur5r

roles/unattended_upgrades/tasks/systemd_timers.yml

@@ -26,7 +26,6 @@
     state: 'directory'
     owner: 'root'
     group: 'root'
-  register: '_apt_daily_timer_d'
 
 - name: 'Ensure directory apt-daily-upgrade.timer.d exists'
   ansible.builtin.file:
@@ -35,7 +34,6 @@
     state: 'directory'
     owner: 'root'
     group: 'root'
-  register: '_apt_daily_upgrade_timer_d'
 
 - name: 'Deploy apt-daily timer'
   ansible.builtin.template:
@@ -46,7 +44,6 @@
     group: 'root'
   when:
     - '_apt_daily.rc == 0'
-    - '_apt_daily_timer_d' # skip if run for the first time in check mode
   notify:
     - 'Restart apt-daily timer'
 
@@ -59,7 +56,6 @@
     group: 'root'
   when:
     - '_apt_daily_upgrade.rc == 0'
-    - '_apt_daily_upgrade_timer_d' # skip if run for the first time in check mode
   notify:
     - 'Restart apt-daily-upgrade timer'
 ...