[Boost-build] Removing HDRMACRO

Subject: [Boost-build] Removing HDRMACRO
From: Steven Watanabe (watanabesj_at_[hidden])
Date: 2013-04-09 13:01:28

AMDG

I'm going to remove the builtin rule HDRMACRO.
It's poorly designed and has never worked
with Boost.Build, because it's hard-coded for
the original jam scanner.

In Christ,
Steven Watanabe