Clean up unused dependencies after move. (linkedin#26)

Closes linkedin#10

NOTICE

@@ -23,10 +23,6 @@ This product includes/uses Apache Kafka (https://kafka.apache.org/)
 Copyright (c) 2017 The Apache Software Foundation.
 License: Apache 2.0 - http://www.apache.org/licenses/LICENSE-2.0
 
-This product includes/uses Apache HttpComponents (https://hc.apache.org/)
-Copyright (c) 2017 The Apache Software Foundation.
-License: Apache 2.0 - http://www.apache.org/licenses/LICENSE-2.0
-
 This product includes/uses Apache Commons IO (https://commons.apache.org/proper/commons-io/)
 Copyright (c) 2020 The Apache Software Foundation.
 License: Apache 2.0 - http://www.apache.org/licenses/LICENSE-2.0
@@ -59,14 +55,6 @@ This product includes/uses Mockito (http://mockito.org/)
 Copyright (c) 2007 Mockito contributors
 License: MIT - http://www.opensource.org/licenses/mit-license.php
 
-This product includes/uses Play Framework (https://www.playframework.com/)
-Copyright (c) 2009- Typesafe
-License: Apache 2.0 - http://www.apache.org/licenses/LICENSE-2.0
-
-This product includes/uses Spring Framework (http://projects.spring.io/spring-framework/)
-Copyright (c) 2002- the original author or authors
-License: Apache 2.0 - http://www.apache.org/licenses/LICENSE-2.0
-
 
 ========================================================================
 External dependencies

build.gradle

@@ -30,59 +30,25 @@ project.ext.spec = [
 ]
 
 project.ext.externalDependency = [
-    'avro_1_7': 'org.apache.avro:avro:1.7.7',
-    'avroCompiler_1_7': 'org.apache.avro:avro-compiler:1.7.7',
-    'cacheApi' : 'javax.cache:cache-api:1.1.0',
     'commonsIo': 'commons-io:commons-io:2.4',
     'commonsLang': 'commons-lang:commons-lang:2.6',
     'ebean': 'io.ebean:ebean:11.33.3',
     'ebeanAgent': 'io.ebean:ebean-agent:11.27.1',
     'elasticSearchRest': 'org.elasticsearch.client:elasticsearch-rest-high-level-client:5.6.8',
     'elasticSearchTransport': 'org.elasticsearch.client:transport:5.6.8',
-    'findbugsAnnotations': 'com.google.code.findbugs:annotations:3.0.1',
-    'guice': 'com.google.inject:guice:4.2.2',
     'guava': 'com.google.guava:guava:27.0.1-jre',
     'h2': 'com.h2database:h2:1.4.196',
-    'hibernateCore': 'org.hibernate:hibernate-core:5.2.16.Final',
-    'httpClient': 'org.apache.httpcomponents:httpclient:4.5.9',
     'jacksonCore': 'com.fasterxml.jackson.core:jackson-core:2.9.7',
     'jacksonDataBind': 'com.fasterxml.jackson.core:jackson-databind:2.9.7',
     'javatuples': 'org.javatuples:javatuples:1.2',
-    'javaxInject' : 'javax.inject:javax.inject:1',
-    'jerseyCore': 'org.glassfish.jersey.core:jersey-client:2.25.1',
-    'jerseyGuava': 'org.glassfish.jersey.bundles.repackaged:jersey-guava:2.25.1',
     'jsonSimple': 'com.googlecode.json-simple:json-simple:1.1.1',
-    'junit': 'junit:junit:4.12',
-    // avro-serde includes dependencies for `kafka-avro-serializer` `kafka-schema-registry-client` and `avro`
-    'kafkaAvroSerde': 'io.confluent:kafka-streams-avro-serde:5.2.2',
-    'kafkaClients': 'org.apache.kafka:kafka-clients:2.3.0',
-    'logbackClassic': 'ch.qos.logback:logback-classic:1.2.3',
     'lombok': 'org.projectlombok:lombok:1.18.12',
-    'mariadbConnector': 'org.mariadb.jdbc:mariadb-java-client:2.6.0',
     'mockito': 'org.mockito:mockito-core:3.0.0',
-    'mysqlConnector': 'mysql:mysql-connector-java:5.1.47',
     'neo4jHarness': 'org.neo4j.test:neo4j-harness:3.4.11',
     'neo4jJavaDriver': 'org.neo4j.driver:neo4j-java-driver:4.0.0',
     'parseqTest': 'com.linkedin.parseq:parseq:3.0.7:test',
-    'picocli': 'info.picocli:picocli:4.5.0',
-    'playDocs': 'com.typesafe.play:play-docs_2.11:2.6.18',
-    'playGuice': 'com.typesafe.play:play-guice_2.11:2.6.18',
-    'playJavaJdbc': 'com.typesafe.play:play-java-jdbc_2.11:2.6.18',
-    'playTest': 'com.typesafe.play:play-test_2.11:2.6.18',
     'postgresql': 'org.postgresql:postgresql:42.2.14',
     'reflections': 'org.reflections:reflections:0.9.11',
-    'rythmEngine': 'org.rythmengine:rythm-engine:1.3.0',
-    'servletApi': 'javax.servlet:javax.servlet-api:3.1.0',
-    'springBeans': 'org.springframework:spring-beans:5.2.3.RELEASE',
-    'springContext': 'org.springframework:spring-context:5.2.3.RELEASE',
-    'springCore': 'org.springframework:spring-core:5.2.3.RELEASE',
-    'springJdbc': 'org.springframework:spring-jdbc:5.2.3.RELEASE',
-    'springWeb': 'org.springframework:spring-web:5.2.3.RELEASE',
-    'springBootAutoconfigure': 'org.springframework.boot:spring-boot-autoconfigure:2.1.2.RELEASE',
-    'springBootStarterWeb': 'org.springframework.boot:spring-boot-starter-web:2.1.2.RELEASE',
-    'springBootStarterJetty': 'org.springframework.boot:spring-boot-starter-jetty:2.1.2.RELEASE',
-    'springKafka': 'org.springframework.kafka:spring-kafka:2.2.14.RELEASE',
-    'springActuator': 'org.springframework.boot:spring-boot-starter-actuator:2.1.2.RELEASE',
     'testng': 'org.testng:testng:6.9.9'
 ]