[SPARK-21253][CORE][HOTFIX] Fix Scala 2.10 build

## What changes were proposed in this pull request?

A follow up PR to fix Scala 2.10 build for apache#18472

## How was this patch tested?

Jenkins

Author: Shixiong Zhu <[email protected]>

Closes apache#18478 from zsxwing/SPARK-21253-2.

Author: zsxwing

common/network-common/src/main/java/org/apache/spark/network/client/TransportResponseHandler.java

@@ -92,7 +92,7 @@ public void removeRpcRequest(long requestId) {
 
   public void addStreamCallback(String streamId, StreamCallback callback) {
     timeOfLastRequestNs.set(System.nanoTime());
-    streamCallbacks.offer(Tuple2.apply(streamId, callback));
+    streamCallbacks.offer(new Tuple2<>(streamId, callback));
   }
 
   @VisibleForTesting