[GHC] #8192: Finally remove -fwarn-lazy-unlifted-bindings flag

[GHC]

#8192: Finally remove -fwarn-lazy-unlifted-bindings flag
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       Reporter:  thoughtpolice     |             Owner:  thoughtpolice
           Type:  bug               |            Status:  new
       Priority:  normal            |         Milestone:  7.10.1
      Component:  Compiler          |           Version:  7.6.3
       Keywords:                    |  Operating System:  Unknown/Multiple
   Architecture:  Unknown/Multiple  |   Type of failure:  None/Unknown
     Difficulty:  Unknown           |         Test Case:
     Blocked By:                    |          Blocking:
Related Tickets:  #8022             |
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 See #8022. We should finally put this flag to rest.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8192>
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