HDDS-2120. Remove hadoop classes from ozonefs-current jar

Closes #1434

hadoop-ozone/ozonefs-lib-current/pom.xml

@@ -91,6 +91,16 @@
       <groupId>org.apache.hadoop</groupId>
       <artifactId>hadoop-ozone-filesystem</artifactId>
       <scope>compile</scope>
+      <exclusions>
+        <exclusion>
+          <groupId>org.apache.hadoop</groupId>
+          <artifactId>hadoop-common</artifactId>
+        </exclusion>
+        <exclusion>
+          <groupId>org.apache.hadoop</groupId>
+          <artifactId>hadoop-hdfs</artifactId>
+        </exclusion>
+      </exclusions>
     </dependency>
   </dependencies>
 </project>