[SPARK-43405][SQL] Remove useless getRowFormatSQL, inputRowFormatSQL, outputRowFormatSQL method

### What changes were proposed in this pull request?

Remove useless code in class `ScriptInputOutputSchema`. Include `getRowFormatSQL`, `inputRowFormatSQL`, `outputRowFormatSQL` method. It unused when #16869

### Why are the changes needed?
Clear code.

### Does this PR introduce _any_ user-facing change?
No

### How was this patch tested?
Unnecessary.

Closes #41063 from Hisoka-X/remove_useless_code.

Authored-by: Hisoka <fanjiaeminem@qq.com>
Signed-off-by: Herman van Hovell <herman@databricks.com>

Author: Hisoka-X

sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/ScriptTransformation.scala

@@ -49,53 +49,4 @@ case class ScriptInputOutputSchema(
     outputSerdeProps: Seq[(String, String)],
     recordReaderClass: Option[String],
     recordWriterClass: Option[String],
-    schemaLess: Boolean) {
-
-  def inputRowFormatSQL: Option[String] =
-    getRowFormatSQL(inputRowFormat, inputSerdeClass, inputSerdeProps)
-
-  def outputRowFormatSQL: Option[String] =
-    getRowFormatSQL(outputRowFormat, outputSerdeClass, outputSerdeProps)
-
-  /**
-   * Get the row format specification
-   * Note:
-   * 1. Changes are needed when readerClause and writerClause are supported.
-   * 2. Changes are needed when "ESCAPED BY" is supported.
-   */
-  private def getRowFormatSQL(
-    rowFormat: Seq[(String, String)],
-    serdeClass: Option[String],
-    serdeProps: Seq[(String, String)]): Option[String] = {
-    if (schemaLess) return Some("")
-
-    val rowFormatDelimited =
-      rowFormat.map {
-        case ("TOK_TABLEROWFORMATFIELD", value) =>
-          "FIELDS TERMINATED BY " + value
-        case ("TOK_TABLEROWFORMATCOLLITEMS", value) =>
-          "COLLECTION ITEMS TERMINATED BY " + value
-        case ("TOK_TABLEROWFORMATMAPKEYS", value) =>
-          "MAP KEYS TERMINATED BY " + value
-        case ("TOK_TABLEROWFORMATLINES", value) =>
-          "LINES TERMINATED BY " + value
-        case ("TOK_TABLEROWFORMATNULL", value) =>
-          "NULL DEFINED AS " + value
-        case o => return None
-      }
-
-    val serdeClassSQL = serdeClass.map("'" + _ + "'").getOrElse("")
-    val serdePropsSQL =
-      if (serdeClass.nonEmpty) {
-        val props = serdeProps.map{p => s"'${p._1}' = '${p._2}'"}.mkString(", ")
-        if (props.nonEmpty) " WITH SERDEPROPERTIES(" + props + ")" else ""
-      } else {
-        ""
-      }
-    if (rowFormat.nonEmpty) {
-      Some("ROW FORMAT DELIMITED " + rowFormatDelimited.mkString(" "))
-    } else {
-      Some("ROW FORMAT SERDE " + serdeClassSQL + serdePropsSQL)
-    }
-  }
-}
+    schemaLess: Boolean)