Addendum to HADOOP-16990. Update Mockserver. Contributed by Akira Ajisaka.

Signed-off-by: Wei-Chiu Chuang <weichiu@apache.org>
(cherry picked from commit 800b1ed1c22ccd60a8560a80e2d84129b359e630)

hadoop-hdfs-project/hadoop-hdfs-client/pom.xml

@@ -99,11 +99,6 @@ https://maven.apache.org/xsd/maven-4.0.0.xsd">
         </exclusion>
       </exclusions>
     </dependency>
-    <dependency>
-      <groupId>org.bouncycastle</groupId>
-      <artifactId>bcprov-jdk16</artifactId>
-      <scope>test</scope>
-    </dependency>
     <dependency>
       <groupId>org.apache.hadoop</groupId>
       <artifactId>hadoop-common</artifactId>