Revert "Fix #4230: Handle import in the REPL correctly"

This reverts commit 5cbb512.

Author: nicolasstucki

compiler/src/dotty/tools/repl/ReplDriver.scala

@@ -317,7 +317,7 @@ class ReplDriver(settings: Array[String],
       for {
         objectIndex <- 1 to state.objectIndex
         imp <- state.imports.getOrElse(objectIndex, Nil)
-      } out.println(SyntaxHighlighting(imp.show(state.context)))
+      } out.println(imp.show(state.context))
       state
 
     case Load(path) =>