copr-dist-git: don't re-add SWAP volume

This volume has been dropped, we now use the /swap swap-file, same as
the other Copr servers.

roles/copr/dist_git/tasks/mount_fs.yml

@@ -13,19 +13,5 @@
     src: /var/lib/dist-git/per-task-logs
     path: /var/lib/copr-dist-git/per-task-logs
 
-- name: Write swap entry in fstab
-  mount:
-    path: none
-    src: UUID=0ffcf9f2-8a79-4973-bee4-2d16c410fd77
-    fstype: swap
-    opts: sw
-    passno: 0
-    dump: 0
-    state: present
-  when: not devel
-  tags:
-    - swap.fstab
-    - swap
-
 - name: mount tmp on tmpfs
   mount: name=/tmp src=tmpfs fstype=tmpfs state=mounted opts=defaults,size=39G,nr_inodes=2g