[IMPALA-13112] Remove Kafka Dependency Exclusion to Use KafkaAuditPro…

…vider

Recent tests indicate that the latest version of `kafka-clients-2.8.1.jar`
used by Apache Ranger does not cause the previous JAX-RS conflicts.
Therefore, this exclusion is no longer necessary. Removing the exclusion
allows us to use the KafkaAuditProvider in Ranger for comprehensive audit
logging.

References:
1. [Commit a1f4a84](a1f4a84)
2. [Commit f85dbff](f85dbff)

fe/pom.xml

@@ -176,10 +176,6 @@ under the License.
           <groupId>com.cloudera</groupId>
           <artifactId>jwtprovider-knox</artifactId>
         </exclusion>
-        <exclusion>
-          <groupId>org.apache.kafka</groupId>
-          <artifactId>*</artifactId>
-        </exclusion>
         <!-- After RANGER-3498, Ranger's ranger-plugins-audit starts pulling in
         log4j-1.2-api, which is banned by Impala's frontend. Thus we exclude the
         dependency here.-->