should not uri encode scroll id now that we are using POST fixes #326

Author: Mpdreamz

src/Nest/ElasticClient-Scroll.cs

@@ -19,7 +19,6 @@ public IQueryResponse<T> Scroll<T>(string scrollTime, string scrollId) where T :
 			scrollId.ThrowIfNullOrEmpty("scrollId");
 			scrollTime.ThrowIfNullOrEmpty("scrollTime");
 
-			scrollId = Uri.EscapeDataString(scrollId);
 			scrollTime = Uri.EscapeDataString(scrollTime);
 
 			var path = "_search/scroll?scroll={0}".F(scrollTime);