copr-builders: ibm-cloud-vm spawner script cleanup

roles/copr/backend/templates/resalloc/ibm-cloud-vm.j2

@@ -84,10 +84,9 @@ def bind_floating_ip(service, instance_id, opts):
 
 def allocate_and_assign_ip(service, opts):
     """
-    curl -X POST "$vpc_api_endpoint/v1/floating_ips?version=$api_version&generation=2" \
-        -H "$iam_token" \
-'
+    Allocate and assign a Floating IP to an existing machine in one call.
     """
+
     url = SERVICE_URL + "/floating_ips"
     headers = {
         "Accept": "application/json",
@@ -97,14 +96,12 @@ def allocate_and_assign_ip(service, opts):
         'version': "2022-01-18",
         'generation': "2",
     }
-
     data = {
         "name": opts.instance_name,
         "target": {
             "id": opts.instance_created["primary_network_interface"]["id"],
         },
     }
-
     response = requests.post(url, headers=headers, json=data, params=params)
     assert response.status_code == 201
     opts.allocated_floating_ip_id = response.json()["id"]