Fix compilation in unfollow action tests

This arose when two commits were pushed at roughly the same time, both
of which compiled successfully against master, but not when taken
together. This commit fixes a reference in one of the commits that was
changed in the other commit.

x-pack/plugin/ccr/src/test/java/org/elasticsearch/xpack/ccr/action/TransportUnfollowActionTests.java

@@ -78,7 +78,7 @@ public class TransportUnfollowActionTests extends ESTestCase {
             new ShardId("leader_index", "", 0),
             1024,
             1,
-            TransportResumeFollowAction.DEFAULT_MAX_BATCH_SIZE_IN_BYTES,
+            TransportResumeFollowAction.DEFAULT_MAX_BATCH_SIZE,
             1,
             10240,
             TimeValue.timeValueMillis(10),