cleanup a little bit

port/Lib/CompileExp.newt

@@ -7,17 +7,13 @@
 -- I could make names unique (e.q. on lambdas), but I might want that to vary per backend?
 module Lib.CompileExp
 
-import Data.List
-
 import Lib.Types -- Name / Tm
 import Lib.TopContext
 import Lib.Prettier
 import Lib.Util
 
-
 CExp : U
 
-
 data CAlt : U where
   CConAlt : String -> List String -> CExp -> CAlt
   -- REVIEW keep var name?