removed commented-out code

Author: Jolanrensen

core/src/main/kotlin/org/jetbrains/kotlinx/dataframe/documentation/ExpressionsGivenRow.kt

@@ -85,21 +85,6 @@ internal interface ExpressionsGivenRow {
 
     /** [Row Value Expression][RowValueExpression.WithExample] */
     interface RowValueExpressionLink
-
-//    @Deprecated(
-//        "This is located in another file",
-//        ReplaceWith("ExpressionsGivenColumn.RowColumnExpression"),
-//        DeprecationLevel.ERROR,
-//    )
-//    interface RowColumnExpression {
-//
-//        @Deprecated(
-//            "This is located in another file",
-//            ReplaceWith("ExpressionsGivenColumn.RowColumnExpression.WithExample"),
-//            DeprecationLevel.ERROR,
-//        )
-//        interface WithExample
-//    }
 }
 
 /** [Row Expression][ExpressionsGivenRow] */