Remove Haskell from /usr/local/

Haskell is now availabe in /pkg. The wrappers in this bee package in /usr/bin mask
the package-wrappers in /usr/local/package/bin.

Some libraries this package depends on are already gone:

    MISS libncurses.so.5 /usr/local/haskell/ghc-8.0.1-x86_64/lib/ghc-8.0.1/terminfo-0.4.0.2/libform.so.5.7
    MISS libncurses.so.5 /usr/local/haskell/ghc-8.0.1-x86_64/lib/ghc-8.0.1/terminfo-0.4.0.2/libmenu.so.5.7
    MISS libncurses.so.5 /usr/local/haskell/ghc-8.0.1-x86_64/lib/ghc-8.0.1/terminfo-0.4.0.2/libpanel.so.5.7
    MISS libtinfo.so.5   /usr/local/haskell/ghc-8.0.1-x86_64/lib/ghc-8.0.1/terminfo-0.4.0.2/libHSterminfo-0.4.0.2-ghc8.0.1.so

If somebody needs this old Haskell version, we can easily add a /pkg
based package for that version, too.