[GHC] #11758: Drop x86_64 binutils <2.17 hack

[GHC]

#11758: Drop x86_64 binutils <2.17 hack
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        Reporter:  bgamari           |                Owner:  avd
            Type:  task              |               Status:  closed
        Priority:  normal            |            Milestone:  8.2.1
       Component:  Compiler (NCG)    |              Version:  8.0.1-rc2
      Resolution:  fixed             |             Keywords:  newcomer
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  12433             |  Differential Rev(s):  Phab:D2426
       Wiki Page:                    |
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Comment (by simonpj):

 Could perhaps be the cause of #12501?

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11758#comment:7>
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