REFACTORING: remove unused functions

[shahn]

There are certainly lots of unused functions, operations and/or values. These should be removed for clarity.

How can they be detected automatically? Sourcegraph should be able to do that, but I didn't manage to use it right.

[Tyler Breisacher (matrixfrog)]

Tried SourceGraph and got the following output:

$ SourceGraph nikki.cabal
Could not parse source file ./Utils.hs
Could not parse source file ./scripts/converter-0_2_20.hs
Could not parse source file ./Object/Types.hs
SourceGraph: Ambiguous infix expression

Will ping the maintainer of SourceGraph...

[shahn (shahn)]

@matrixfrog: This is a known problem with haskell-src-exts: http://trac.haskell.org/haskell-src-exts/ticket/189 (which is probably used by SourceGraph?). Note that this is marked as "wontfix" there.