cleanup of scarpet dependencies

src/main/java/carpet/script/value/AbstractListValue.java

@@ -3,7 +3,6 @@ package carpet.script.value;
 import carpet.script.exception.InternalExpressionException;
 import com.google.common.collect.Lists;
 
-import java.util.Iterator;
 import java.util.List;
 
 public abstract class AbstractListValue extends Value implements Iterable<Value>