Merge pull request #10723 from cabalism/remove/unused-cpp

Cabal-QuickCheck/src/Test/QuickCheck/GenericArbitrary.hs

Cabal-syntax/src/Distribution/Compat/Binary.hs

Cabal-syntax/src/Distribution/Compat/Exception.hs

Cabal-syntax/src/Distribution/Compat/Graph.hs

Cabal-syntax/src/Distribution/Compat/MonadFail.hs

Cabal-syntax/src/Distribution/Compat/Newtype.hs

Cabal-syntax/src/Distribution/Compat/Prelude.hs

Cabal-syntax/src/Distribution/Compat/Semigroup.hs

Cabal-syntax/src/Distribution/FieldGrammar/Class.hs

Cabal-syntax/src/Distribution/Fields/ParseResult.hs

Cabal-syntax/src/Distribution/PackageDescription/Parsec.hs

Cabal-syntax/src/Distribution/Parsec.hs

Cabal-syntax/src/Distribution/System.hs

Cabal-syntax/src/Distribution/Utils/Generic.hs

Cabal-tests/tests/UnitTests/Distribution/CabalSpecVersion.hs

Cabal-tests/tests/UnitTests/Distribution/Utils/CharSet.hs

Cabal-tests/tests/UnitTests/Distribution/Utils/Structured.hs

Cabal-tree-diff/src/Data/TreeDiff/Instances/Cabal.hs

Cabal-tree-diff/src/Data/TreeDiff/Instances/CabalLanguage.hs

Cabal-tree-diff/src/Data/TreeDiff/Instances/CabalSPDX.hs