HADOOP-13681. Reduce Kafka dependencies in hadoop-kafka module. Contributed by Grant Henke.

This closes #133

hadoop-tools/hadoop-kafka/pom.xml

@@ -125,7 +125,7 @@
     <!-- see ../../hadoop-project/pom.xml for versions -->
     <dependency>
       <groupId>org.apache.kafka</groupId>
-      <artifactId>kafka_2.10</artifactId>
+      <artifactId>kafka-clients</artifactId>
       <version>${kafka.version}</version>
       <exclusions>
         <exclusion>