Revert "base: temporarily disable systemd restore units"

This reverts commit d9c90528.

roles/base/tasks/backup_dataset.yml

@@ -42,19 +42,19 @@
   loop_control:
     loop_var: diritem
 
-# - name: Create restore script
-#   template:
-#     src: "tabacco/restore-script.j2"
-#     dest: "/usr/lib/float/datasets/restore-{{ dataset_filename }}"
-#     mode: 0755
-#   when: dataset_should_backup
-#
-# - name: Create restore service unit
-#   template:
-#     src: "tabacco/restore-service.j2"
-#     dest: "/etc/systemd/system/restore-{{ dataset_filename }}.service"
-#     mode: 0444
-#   when: dataset_should_backup
+- name: Create restore script
+  template:
+    src: "tabacco/restore-script.j2"
+    dest: "/usr/lib/float/datasets/restore-{{ dataset_filename }}"
+    mode: 0755
+  when: dataset_should_backup
+
+- name: Create restore service unit
+  template:
+    src: "tabacco/restore-service.j2"
+    dest: "/etc/systemd/system/restore-{{ dataset_filename }}.service"
+    mode: 0444
+  when: dataset_should_backup
 
 - name: Enable restore service unit
   systemd: