Uplift of relevante changes of r1855479 in branches/2.4.x, re disappearance of...

Uplift of relevante changes of r1855479 in branches/2.4.x, re disappearance of h2_ngn_shed.* sources.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@1855519 13f79535-47bb-0310-9956-ffa450edef68