HADOOP-14371. License error in TestLoadBalancingKMSClientProvider.java. Contributed by hu xiaodong.

(cherry picked from commit 20cde552748cc6be1c5ca590755d4e5a67baf187)

hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/crypto/key/kms/TestLoadBalancingKMSClientProvider.java

@@ -1,4 +1,4 @@
-/**    when(p1.getKMSUrl()).thenReturn("p1");
+/**
  * Licensed to the Apache Software Foundation (ASF) under one
  * or more contributor license agreements.  See the NOTICE file
  * distributed with this work for additional information