Dwarf info and .debug_pubnames section

Nope, it's removed completely. No debugger that I know of uses it at all and it's
useless for many reasons. Adding the code back in to generate it is possible (it's
a fairly small commit that's easily reverted), but I see no reason to have it generated
by default. What are you doing that involves looking for global variables in the pubnames
section?

-eric