zhengruifeng commented on a change in pull request #22921: 
[SPARK-25908][CORE][SQL] Remove old deprecated items in Spark 3
URL: https://github.com/apache/spark/pull/22921#discussion_r384292322
 
 

 ##########
 File path: mllib/src/main/scala/org/apache/spark/ml/util/ReadWrite.scala
 ##########
 @@ -281,9 +265,6 @@ class GeneralMLWriter(stage: PipelineStage) extends 
MLWriter with Logging {
 
   // override for Java compatibility
   override def session(sparkSession: SparkSession): this.type = 
super.session(sparkSession)
-
-  // override for Java compatibility
-  override def context(sqlContext: SQLContext): this.type = 
super.session(sqlContext.sparkSession)
 
 Review comment:
   @srowen This public method seems had not been deprecated before removal, and 
is avaiable in 2.4.5.
   ```
   scala> import org.apache.spark.ml.util.GeneralMLWriter
   import org.apache.spark.ml.util.GeneralMLWriter
   
   scala> new GeneralMLWriter(null).context(spark.sqlContext)
   res0: org.apache.spark.ml.util.GeneralMLWriter = 
org.apache.spark.ml.util.GeneralMLWriter@26b150cd
   ```
   There is no deprecation warning above. Does it matter?

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