More efficient serialization for TwitterAPIWriting.circe and TwitterAPIWriting.circeJsoniter benchmarks

Author: plokhotnyuk

jsoniter-scala-benchmark/shared/src/main/scala/io/circe/Util.scala

@@ -18,7 +18,6 @@ object Util {
 
     def onArray(value: Vector[Json]): Json = {
       val builder = Vector.newBuilder[Json]
-      builder.sizeHint(value.size)
       value.foreach(v => if (!v.isNull) builder.addOne(v.foldWith(this)))
       val vec = builder.result()
       if (vec.isEmpty) Null