- remove an unused buffer

- mark a constant structure as const, and make it static, it's a waste to
initialize it on every call

- initialize the status flags once rather than on every call

Reviewed by:	Jim Jagielski


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@79813 13f79535-47bb-0310-9956-ffa450edef68