block/iscsi: fix init value for iTask->retries

during rebasing the changed init value for the
retry counter was missed. This resulted in no retries
being performed at all.
Signed-off-by: NPeter Lieven <pl@kamp.de>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

block/iscsi.c

@@ -216,7 +216,6 @@ static void iscsi_co_init_iscsitask(IscsiLun *iscsilun, struct IscsiTask *iTask)
 {
     *iTask = (struct IscsiTask) {
         .co         = qemu_coroutine_self(),
-        .retries    = ISCSI_CMD_RETRIES,
         .iscsilun   = iscsilun,
     };
 }