Remove obsolete dependency for dx

buildSrc/build.gradle.kts

@@ -81,8 +81,6 @@ extra["intellijReleaseType"] = when {
     else -> "releases"
 }
 
-extra["versions.androidDxSources"] = "5.0.0_r2"
-
 extra["customDepsOrg"] = "kotlin.build"
 
 repositories {

buildSrc/src/main/kotlin/localDependencies.kt

@@ -76,8 +76,6 @@ fun Project.jpsStandalone() = "kotlin.build:jps-standalone:${rootProject.extra["
 
 fun Project.nodeJSPlugin() = "kotlin.build:NodeJS:${rootProject.extra["versions.idea.NodeJS"]}"
 
-fun Project.androidDxJar() = "org.jetbrains.kotlin:android-dx:${rootProject.extra["versions.androidBuildTools"]}"
-
 fun Project.jpsBuildTest() = "com.jetbrains.intellij.idea:jps-build-test:${rootProject.extra["versions.intellijSdk"]}"
 
 fun Project.kotlinxCollectionsImmutable() = "org.jetbrains.kotlinx:kotlinx-collections-immutable-jvm:${rootProject.extra["versions.kotlinx-collections-immutable"]}"