test-discovery-plugin-base removed from gradle script, added as maven library

build/dependencies/setupBuildScriptsDeps.gradle

@@ -1,7 +1,4 @@
 // Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license that can be found in the LICENSE file.
-import java.nio.file.Files
-import java.nio.file.Paths
-
 repositories {
   mavenCentral()
   if (project.ext.inJetBrainsNetwork) {
@@ -9,12 +6,10 @@ repositories {
   }
   maven { url "https://jetbrains.bintray.com/intellij-third-party-dependencies" }
   maven { url "https://jetbrains.bintray.com/test-discovery" }
-  jcenter()
 }
 
 configurations {
   buildScriptsDeps
-  testDiscoveryDeps
 }
 
 List<String> projectLibraries = [
@@ -54,23 +49,6 @@ task setupBuildScriptsDeps(dependsOn: configurations.buildScriptsDeps, type: Syn
   into "${project.buildDir}/build-scripts-deps"
 }
 
-task setupTestDiscoveryDeps {
-  doFirst {
-    def dir = "${project.buildDir}/test-discovery-deps"
-    def testDiscoveryDeps = file(dir)
-    testDiscoveryDeps.deleteDir()
-    testDiscoveryDeps.mkdirs()
-    configurations.detachedConfiguration(
-      (dependencies
-        .create('org.jetbrains.testDiscovery:test-discovery-plugin-base:0.1.50') as ModuleDependency)
-        .exclude(group: 'org.codehaus.groovy', module: 'groovy-all')
-    ).files.each { from ->
-      def into = Paths.get("$dir/$from.name")
-      Files.copy(from.toPath(), into)
-    }
-  }
-}
-
 private Tuple2<String, Boolean> loadProjectLibraryProperties(String libraryName) {
   File file = new File(project.rootDir, "../../.idea/libraries/${libraryName.replace('-', '_')}.xml")
   if (!file.exists()) {