Merge r1615026 from trunk:

Turn some APR_BUCKET_REMOVE(e)+apr_bucket_destroy(e) into the equivalent apr_bucket_delete(e) to reduce code verbosity

Submitted by: jailletc36
Reviewed/backported by: jim


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1621600 13f79535-47bb-0310-9956-ffa450edef68