[GHC] #11477: Remove -Wamp

[GHC]

#11477: Remove -Wamp
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           Reporter:  bgamari        |             Owner:
               Type:  task           |            Status:  new
           Priority:  normal         |         Milestone:
          Component:  Compiler       |           Version:  7.10.2
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  Other
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
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 This warning is intended as a temporary measure to aid the Applicative-
 Monad Proposal transition. It should be eventually removed.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11477>
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