Normalization patch bringing 2.2.x branch closer to 2.4.x,

Normalization patch bringing 2.2.x branch closer to 2.4.x,
without functional changes.

Backports: r1213391, r1237407
Submitted by: rjung

zap an unhelpful, out of date comment from httpd 1.2
s/insure/ensure/

Backports: r1407004, r1407088, r1407528
Submitted by: sf

Remove unused code. "Next week" hasn't happened in the last 10 years or so.
remove some more old unused code
remove obsolete comment from 1.3 days

Backports: r1621419 (protocol.c only)
Submitted by: jailletc36

Fix sscanf format spotted by cppcheck
(changes version major/minor types from signed to unsigned)

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.2.x@1757240 13f79535-47bb-0310-9956-ffa450edef68