Remove unused testing utility ColumnAccessTracker

Author: koperagen

core/api/core.api

@@ -5672,10 +5672,6 @@ public final class org/jetbrains/kotlinx/dataframe/impl/CacheKt {
 	public static final fun getListType (Lkotlin/reflect/KType;)Lkotlin/reflect/KType;
 }
 
-public final class org/jetbrains/kotlinx/dataframe/impl/ColumnAccessTrackerKt {
-	public static final fun trackColumnAccess (Lkotlin/jvm/functions/Function0;)Ljava/util/List;
-}
-
 public final class org/jetbrains/kotlinx/dataframe/impl/ColumnNameGenerator {
 	public fun <init> ()V
 	public fun <init> (Ljava/util/List;)V

core/src/main/kotlin/org/jetbrains/kotlinx/dataframe/impl/ColumnAccessTracker.kt

@@ -14,20 +14,11 @@ internal open class DataRowImpl<T>(private val index: Int, private val df: DataF
 
     override fun df() = df
 
-    override operator fun get(name: String): Any? {
-        ColumnAccessTracker.registerColumnAccess(name)
-        return df[name][index]
-    }
+    override operator fun get(name: String): Any? = df[name][index]
 
-    override operator fun <R> get(column: ColumnReference<R>): R {
-        ColumnAccessTracker.registerColumnAccess(column.name())
-        return column.getValue(this)
-    }
+    override operator fun <R> get(column: ColumnReference<R>): R = column.getValue(this)
 
-    override fun <R> getValueOrNull(column: ColumnReference<R>): R? {
-        ColumnAccessTracker.registerColumnAccess(column.name())
-        return column.getValueOrNull(this)
-    }
+    override fun <R> getValueOrNull(column: ColumnReference<R>): R? = column.getValueOrNull(this)
 
     override fun index() = index
 
@@ -37,7 +28,6 @@ internal open class DataRowImpl<T>(private val index: Int, private val df: DataF
 
     override fun get(columnIndex: Int): Any? {
         val column = df.getColumn(columnIndex)
-        ColumnAccessTracker.registerColumnAccess(column.name())
         return column[index]
     }
 
@@ -50,10 +40,7 @@ internal open class DataRowImpl<T>(private val index: Int, private val df: DataF
 
     override fun hashCode() = values.hashCode()
 
-    override fun getOrNull(name: String): Any? {
-        ColumnAccessTracker.registerColumnAccess(name)
-        return df.getColumnOrNull(name)?.get(index)
-    }
+    override fun getOrNull(name: String): Any? = df.getColumnOrNull(name)?.get(index)
 }
 
 internal val <T> DataRow<T>.owner: DataFrame<T> get() = df()

core/src/main/kotlin/org/jetbrains/kotlinx/dataframe/impl/DataRowImpl.kt

@@ -174,7 +174,6 @@ import org.jetbrains.kotlinx.dataframe.impl.columns.isMissingColumn
 import org.jetbrains.kotlinx.dataframe.impl.emptyPath
 import org.jetbrains.kotlinx.dataframe.impl.getColumnsImpl
 import org.jetbrains.kotlinx.dataframe.impl.nothingType
-import org.jetbrains.kotlinx.dataframe.impl.trackColumnAccess
 import org.jetbrains.kotlinx.dataframe.index
 import org.jetbrains.kotlinx.dataframe.io.renderValueForStdout
 import org.jetbrains.kotlinx.dataframe.kind
@@ -278,13 +277,6 @@ class DataFrameTests : BaseTest() {
         sliced[0].name shouldBe typed[1].name
     }
 
-    @Test
-    fun `access tracking`() {
-        trackColumnAccess {
-            typed[2].age
-        } shouldBe listOf("age")
-    }
-
     @Test
     fun `indexing`() {
         val expected = 45