build(frontend): Drop unnecessary DB-related dependencies (datahub-pr…

…oject#1741)

* refactor(frontend): Drop unnecessary DB-related dependencies

* Drop unused dependencies from top-level build script

build.gradle

@@ -63,7 +63,6 @@ project.ext.externalDependency = [
     'parseqTest': 'com.linkedin.parseq:parseq:3.0.7:test',
     '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',
@@ -72,7 +71,6 @@ project.ext.externalDependency = [
     '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',
     'springBootStarterWeb': 'org.springframework.boot:spring-boot-starter-web:2.1.2.RELEASE',
     'springBootStarterJetty': 'org.springframework.boot:spring-boot-starter-jetty:2.1.2.RELEASE',
@@ -123,4 +121,4 @@ subprojects {
       }
     }
   }
-}
+}

datahub-frontend/play.gradle

@@ -19,15 +19,11 @@ dependencies {
 
   play externalDependency.jerseyCore
   play externalDependency.jerseyGuava
-  play externalDependency.mysqlConnector
-  play externalDependency.playJavaJdbc
-  play externalDependency.springJdbc
 
   playTest externalDependency.mockito
   playTest externalDependency.playTest
 
   playRun externalDependency.guice
-  playRun externalDependency.h2
   playRun externalDependency.playDocs
   playRun externalDependency.playGuice
 }
@@ -68,4 +64,4 @@ task unzipAssets(type: Copy, dependsOn: configurations.assets) {
 task moveAssets(type: Copy, dependsOn: unzipAssets) {
   into "${buildDir}/assets"
   from ("${buildDir}/assets/assets")
-}
+}