patch applied (cabal): Remove handling for .hi-boot files, which was only needed for ghc-6.2

Tue Jan 29 16:18:45 PST 2008 Duncan Coutts * Remove handling for .hi-boot files, which was only needed for ghc-6.2 which we have removed support for. It is not clear if we need any similar handling for .hs-boot files. These were also the only uses of smartCopySources which used exitIfNone set to False. M ./Distribution/Simple/GHC.hs -6 +2