[GHC] #7757: Remove unused functions from compiler/codeGen/StgCmmUtils.hs

[GHC]

#7757: Remove unused functions from compiler/codeGen/StgCmmUtils.hs
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Reporter:  bosu              |          Owner:                  
    Type:  task              |         Status:  new             
Priority:  normal            |      Component:  Compiler        
 Version:  7.7               |       Keywords:                  
      Os:  Unknown/Multiple  |   Architecture:  Unknown/Multiple
 Failure:  None/Unknown      |      Blockedby:                  
Blocking:                    |        Related:                  
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 cmmConstrTag, cmmGetTag are used nowhere.

 Attached is the patch to remove them.

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7757>
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