Remove checked-in ml-commons dependency (#529)

Signed-off-by: jackieyanghan <jkhanjob@gmail.com>

doctest/build.gradle

@@ -48,6 +48,9 @@ doctest.finalizedBy stopOpenSearch
 build.dependsOn doctest
 clean.dependsOn(cleanBootstrap)
 
+String mlCommonsRemoteFile = 'https://ci.opensearch.org/ci/dbc/distribution-build-opensearch/1.3.1/latest/linux/x64/builds/opensearch/plugins/opensearch-ml-1.3.1.0.zip'
+String mlCommonsPlugin = "ml-commons"
+
 testClusters {
  docTestCluster {
  plugin(provider(new Callable<RegularFile>(){
@@ -56,7 +59,15 @@ testClusters {
  return new RegularFile() {
  @Override
  File getAsFile() {
- return fileTree("resources/ml-commons").getSingleFile()
+ File dir = new File('./doctest/' + mlCommonsPlugin)
+ if (!dir.exists()) {
+ dir.mkdirs()
+ }
+ File f = new File(mlCommonsPlugin, dir)
+ if (!f.exists()) {
+ new URL(mlCommonsRemoteFile).withInputStream{ ins -> f.withOutputStream{ it << ins }}
+ }
+ return fileTree(mlCommonsPlugin).getSingleFile()
  }
  }
  }