[repo] Migrate Groovy build scripts to use 'javadocJar()' directly from buildSrc

libraries/stdlib/common/build.gradle

@@ -67,7 +67,7 @@ jar {
 }
 
 configureSourcesJar()
-configureJavadocJar()
+RepoArtifacts.javadocJar(project)
 
 sourcesJar.dependsOn(":prepare:build.version:writeStdlibVersion")
 

libraries/stdlib/jdk7/build.gradle

@@ -6,7 +6,7 @@ JvmToolchain.configureJvmToolchain(project, JdkMajorVersion.JDK_1_8)
 
 configurePublishing(project)
 configureSourcesJar()
-configureJavadocJar()
+RepoArtifacts.javadocJar(project)
 
 sourceSets {
     main {

libraries/stdlib/jdk8/build.gradle

@@ -4,7 +4,7 @@ apply plugin: 'kotlin'
 
 configurePublishing(project)
 configureSourcesJar()
-configureJavadocJar()
+RepoArtifacts.javadocJar(project)
 
 dependencies {
     api project(':kotlin-stdlib')

libraries/stdlib/js-v1/build.gradle

@@ -8,7 +8,7 @@ apply plugin: 'kotlin-platform-js'
 apply plugin: 'idea'
 
 configurePublishing(project)
-configureJavadocJar()
+RepoArtifacts.javadocJar(project)
 
 configurations {
     sources

libraries/stdlib/jvm/build.gradle

@@ -9,7 +9,7 @@ archivesBaseName = 'kotlin-stdlib'
 JvmToolchain.configureJvmToolchain(project, JdkMajorVersion.JDK_1_8)
 
 configurePublishing(project)
-configureJavadocJar()
+RepoArtifacts.javadocJar(project)
 configureSourcesJar()
 
 configurations {