Turn off precompiled header support for Apache.mak/dsp and ApacheCore.mak/dsp.

Submitted by:	William Rowe
Reviewed by:	Bill Stoddard


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@84805 13f79535-47bb-0310-9956-ffa450edef68