Remove unused EMR info in Flint metadata

Signed-off-by: Chen Dai <[email protected]>

flint-spark-integration/src/main/scala/org/opensearch/flint/spark/FlintSparkIndex.scala

@@ -90,22 +90,6 @@ object FlintSparkIndex {
   def flintIndexNamePrefix(fullTableName: String): String =
     s"flint_${fullTableName.replace(".", "_")}_"
 
-  /**
-   * Populate environment variables to persist in Flint metadata.
-   *
-   * @return
-   *   env key value mapping to populate
-   */
-  def populateEnvToMetadata: Map[String, String] = {
-    // TODO: avoid hardcoding env name below by providing another config
-    val envNames = Seq("SERVERLESS_EMR_VIRTUAL_CLUSTER_ID", "SERVERLESS_EMR_JOB_ID")
-    envNames
-      .flatMap(key =>
-        Option(System.getenv(key))
-          .map(value => key -> value))
-      .toMap
-  }
-
   /**
    * Create Flint metadata builder with common fields.
    *
@@ -120,12 +104,6 @@ object FlintSparkIndex {
     builder.kind(index.kind)
     builder.options(index.options.optionsWithDefault.mapValues(_.asInstanceOf[AnyRef]).asJava)
 
-    // Index properties
-    val envs = populateEnvToMetadata
-    if (envs.nonEmpty) {
-      builder.addProperty("env", envs.asJava)
-    }
-
     // Optional index settings
     val settings = index.options.indexSettings()
     if (settings.isDefined) {