[GHC] #11472: Remove CallStack CPP guards in GHC 8.4

[GHC]

#11472: Remove CallStack CPP guards in GHC 8.4
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        Reporter:  bgamari           |                Owner:  (none)
            Type:  task              |               Status:  closed
        Priority:  normal            |            Milestone:  8.4.1
       Component:  Compiler          |              Version:  8.0.1-rc1
      Resolution:  fixed             |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Changes (by bgamari):

 * status:  new => closed
 * resolution:   => fixed
 * milestone:  8.6.1 => 8.4.1


Comment:

 This was carried out in c13720c8c6047844f659ad4ce684946b80c99bee.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11472#comment:8>
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