Fixed zookeeper dependency of Kafka

Author: tdas

external/kafka/pom.xml

@@ -68,6 +68,10 @@
           <groupId>org.slf4j</groupId>
           <artifactId>slf4j-simple</artifactId>
         </exclusion>
+        <exclusion>
+          <groupId>org.apache.zookeeper</groupId>
+          <artifactId>zookeeper</artifactId>
+        </exclusion>
       </exclusions>
     </dependency>
     <dependency>