[GHC] #8330: Remove ExtsCompat46 module once we bootstrap with GHC 7.8

[GHC]

#8330: Remove ExtsCompat46 module once we bootstrap with GHC 7.8
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              Reporter:  jstolarek   |            Owner:
                  Type:  task        |           Status:  new
              Priority:  highest     |        Milestone:  7.12.1
             Component:  Compiler    |          Version:  7.7
            Resolution:              |         Keywords:
      Operating System:              |     Architecture:  Unknown/Multiple
  Unknown/Multiple                   |       Difficulty:  Easy (less than 1
       Type of failure:              |  hour)
  None/Unknown                       |       Blocked By:
             Test Case:              |  Related Tickets:
              Blocking:              |
Differential Revisions:              |
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Changes (by hvr):

 * milestone:  7.10.1 => 7.12.1


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8330#comment:2>
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