PIP-62: Delete pulsar adapters (apache#8480)

Delete the pulsar adapter modules because they are already moved to https://github.com/apache/pulsar-adapters

.github/workflows/ci-unit.yaml

@@ -64,10 +64,6 @@ jobs:
         if: steps.docs.outputs.changed_only == 'no'
         run: ./build/retry.sh mvn -B -ntp test -pl managed-ledger -Dinclude="**/ManagedLedgerTest.java" -DtestForkCount=1 -DtestReuseFork=true
 
-      - name: run flaky test "**/KafkaProducerSimpleConsumerTest.java"
-        if: steps.docs.outputs.changed_only == 'no'
-        run: ./build/retry.sh mvn -B -ntp test -pl pulsar-client-kafka-compat/pulsar-client-kafka_0_8 -Dinclude="**/KafkaProducerSimpleConsumerTest.java" -DtestForkCount=1 -DtestReuseFork=true
-
       - name: run flaky test "**/TestPulsarKeyValueSchemaHandler.java"
         if: steps.docs.outputs.changed_only == 'no'
         run: ./build/retry.sh mvn -B -ntp test -pl pulsar-sql/presto-pulsar-plugin -Dinclude="**/TestPulsarKeyValueSchemaHandler.java" -DtestForkCount=1 -DtestReuseFork=true

pom.xml

@@ -1579,16 +1579,11 @@ flexible messaging model and an intuitive client API.</description>
         <module>pulsar-websocket</module>
         <module>pulsar-proxy</module>
         <module>pulsar-discovery-service</module>
-        <module>pulsar-storm</module>
-        <module>pulsar-flink</module>
-        <module>pulsar-spark</module>
         <module>pulsar-zookeeper-utils</module>
         <module>pulsar-testclient</module>
         <module>pulsar-broker-auth-athenz</module>
         <module>pulsar-client-auth-athenz</module>
-        <module>pulsar-client-kafka-compat</module>
         <module>pulsar-zookeeper</module>
-        <module>pulsar-log4j2-appender</module>
         <module>pulsar-sql</module>
         <module>dashboard</module>
         <module>pulsar-broker-auth-sasl</module>