address comments

Author: cloud-fan

sql/core/src/main/java/org/apache/spark/sql/sources/v2/ContinuousReadSupport.java

@@ -20,8 +20,6 @@
 import java.util.Optional;
 
 import org.apache.spark.annotation.InterfaceStability;
-import org.apache.spark.sql.sources.v2.DataSourceV2;
-import org.apache.spark.sql.sources.v2.DataSourceOptions;
 import org.apache.spark.sql.sources.v2.reader.streaming.ContinuousReader;
 import org.apache.spark.sql.types.StructType;
 

sql/core/src/main/java/org/apache/spark/sql/sources/v2/MicroBatchReadSupport.java

@@ -20,8 +20,6 @@
 import java.util.Optional;
 
 import org.apache.spark.annotation.InterfaceStability;
-import org.apache.spark.sql.sources.v2.DataSourceOptions;
-import org.apache.spark.sql.sources.v2.DataSourceV2;
 import org.apache.spark.sql.sources.v2.reader.streaming.MicroBatchReader;
 import org.apache.spark.sql.types.StructType;
 

sql/core/src/main/java/org/apache/spark/sql/sources/v2/StreamWriteSupport.java

@@ -19,8 +19,6 @@
 
 import org.apache.spark.annotation.InterfaceStability;
 import org.apache.spark.sql.execution.streaming.BaseStreamingSink;
-import org.apache.spark.sql.sources.v2.DataSourceOptions;
-import org.apache.spark.sql.sources.v2.DataSourceV2;
 import org.apache.spark.sql.sources.v2.writer.DataSourceWriter;
 import org.apache.spark.sql.sources.v2.writer.streaming.StreamWriter;
 import org.apache.spark.sql.streaming.OutputMode;