avd authored Aug 04, 2016 and Ben Gamari committed Aug 05, 2016

There was a complication on the x86_64 platform, where pointers were 64
bits, but the tools didn't support 64-bit relative relocations.  This
was true before binutils 2.17, which nowadays is quite standart (even
CentOs 5 is shipped with 2.17).

Hacks were removed from x86 genSwitch and asm pretty printer. Also
[x86-64-relative] note was dropped from
includes/rts/storage/InfoTables.h as it's not referenced anywhere now.

Reviewers: austin, simonmar, rwbarton, erikd, bgamari

Reviewed By: simonmar, erikd, bgamari

Subscribers: thomie

Differential Revision: https://phabricator.haskell.org/D2426