mod_sed:
Avoid the call to APR_BUCKET_REMOVE() + apr_bucket_delete() on the
same bucket.
Also, empty the input brigade while looping to avoid the trailing
apr_brigade_cleanup() call (no functional change).


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1601864 13f79535-47bb-0310-9956-ffa450edef68