alarms: eliminate httpd.alarms.db.xml.path -- missing deletion of batch check

This seems to have been caught while I was testing
but I neglected to update the patch accordingly.

It needs to be eliminated or httpd will not start now
(after commit 4a66f6c982a90024141e19b842d94ddfca005cdf).

Target: master
Patch: https://rb.dcache.org/r/7158/
Require-notes: no
Require-book: no
Acked-by: Gerd