copr-be: drop old scripts related to aarch64 hypervisor

Once we have aarch64 hypervisor again, we'll use the scripts we already
use for ppc64le/x86_64 nowadays.  These removed wouldn't be used.

roles/copr/backend/files/provision/builderpb_libvirt_aarch64.yml

@@ -1,11 +0,0 @@
-- name: create instance
-  hosts: 127.0.0.1
-  gather_facts: False
-  connection: local
-
-  vars_files:
-  - vars.yml
-
-  tasks:
-  - name: spin machine with script
-    local_action: shell /bin/bash ./vm-aarch64-alloc

roles/copr/backend/files/provision/terminatepb_libvirt_aarch64.yml

@@ -1,8 +0,0 @@
-- name: terminate instance
-  hosts: 127.0.0.1
-  gather_facts: False
-  connection: local
-
-  tasks:
-  - name: terminate VM
-    local_action: shell /bin/bash ./vm-aarch64-terminate "{{ copr_task.vm_name }}"

roles/copr/backend/files/provision/vm-aarch64-alloc

@@ -1,19 +0,0 @@
-#! /bin/bash
-
-ticket=
-
-cleanup()
-{
-    test -n "$ticket" && resalloc ticket-close "$ticket"
-}
-
-trap cleanup EXIT
-
-ticket=$(resalloc ticket --tag aarch64)
-ip=$(resalloc ticket-wait "$ticket")
-test -z "$ip" && exit 1
-
-trap '' EXIT
-
-echo "vm_name=$ticket"
-echo "IP=$ip"

roles/copr/backend/files/provision/vm-aarch64-terminate

@@ -1,7 +0,0 @@
-#! /bin/sh
-
-die() { echo >&2 "$*" ; exit 1 ;}
-
-test -n "$1" || die "one argument required"
-
-resalloc ticket-close "$1"