HBASE-16701 rely on test category timeout instead of defining one on a specific test.

Signed-off-by: Umesh Agashe <uagashe@cloudera.com>
Signed-off-by: Yu Li <liyu@apache.org>

hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/TestHRegion.java

@@ -6639,7 +6639,7 @@ public class TestHRegion {
    * HBASE-16429 Make sure no stuck if roll writer when ring buffer is filled with appends
    * @throws IOException if IO error occurred during test
    */
-  @Test(timeout = 60000)
+  @Test
   public void testWritesWhileRollWriter() throws IOException {
     int testCount = 10;
     int numRows = 1024;