[PATCH] Remove unused dl-procinfo.h

[Florian Weimer]

* Peter Bergner:

> I find LD_SHOW_AUXV=1 /bin/true pretty handy, but if removing it cleans
> things up and makes the code simpler, I won't stand in the way.  I can
> always code up a little program to replicate its output.

I think we can introduce architecture-specific implementations for
printing AT_HWCAP and AT_HWCAP2.  The current feature isn't inherently
hard to support, it's just that sticking things into the middle of GLRO
(which shared between ld.so and libc.so) causes friction for glibc
updates.

Thanks,
Florian