B #5333: detach disk is not being properly applied

src/vmm_mad/remotes/vcenter/detach_disk

@@ -46,6 +46,9 @@ begin
     raise "vCenter doesn't allow to remove a virtual disk if it's part of a "\
           "snapshot of the virtual machine." if vm.has_snapshots?
 
+    disk = drv_action.retrieve_xmlelements("VM/TEMPLATE/DISK[ATTACH='YES']").first
+    vm.detach_disk(disk)
+
 rescue Exception => e
     message = "Detach DISK for VM #{vm_ref} on vCenter cluster #{vc_cluster_name} "\
               "failed due to \"#{e.message}\"\n#{e.backtrace}"
@@ -53,4 +56,4 @@ rescue Exception => e
     exit -1
 ensure
     vi_client.close_connection if vi_client
-end
+end