Merge pull request ReactiveX#1 from samuelgruetter/OpeningClosingRemovedSam

remove package rx.lang.scala.util since all its contents were removed

Author: akarnokd

language-adaptors/rxjava-scala/src/main/scala/rx/lang/scala/Observable.scala

@@ -75,7 +75,6 @@ trait Observable[+T]
   import scala.collection.Seq
   import scala.concurrent.duration.{Duration, TimeUnit}
   import rx.util.functions._
-  import rx.lang.scala.util._
   import rx.lang.scala.observables.BlockingObservable
   import ImplicitFunctionConversions._
   import JavaConversions._