fix some warnings

test/Gyehoek/Test/CPS/Stackify.hs

@@ -8,7 +8,6 @@ import Data.List (List)
 import Gyehoek.CPS.Syntax (cps)
 import Gyehoek.GenSym (runGenSym)
 import Effectful
-import Test.Tasty.ExpectedFailure (expectFail)
 
 
 root :: IO TestTree

test/Gyehoek/Test/CPS/Syntax.hs

@@ -3,12 +3,9 @@ module Gyehoek.Test.CPS.Syntax (root) where
 
 import Test.Tasty (TestTree, testGroup)
 import Test.Tasty.HUnit
-import Language.Sexp.Located qualified as SL
 import Language.SexpGrammar ()
 import Gyehoek.CPS.Syntax (cps)
 import Gyehoek.CPS.Syntax qualified as Sut
-import Data.Function (on)
-import Gyehoek.Test.Sexp (equivto)
 
 
 root :: IO TestTree