diff --git a/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/plugin/mpp/CompilationDetails.kt b/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/plugin/mpp/CompilationDetails.kt
deleted file mode 100644
index f0feee0d074..00000000000
--- a/libraries/tools/kotlin-gradle-plugin/src/common/kotlin/org/jetbrains/kotlin/gradle/plugin/mpp/CompilationDetails.kt
+++ /dev/null
@@ -1,52 +0,0 @@
-/*
- * Copyright 2010-2021 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
-package org.jetbrains.kotlin.gradle.plugin.mpp
-
-import org.jetbrains.kotlin.gradle.dsl.*
-import org.jetbrains.kotlin.gradle.plugin.*
-import org.jetbrains.kotlin.gradle.plugin.mpp.pm20.*
-import org.jetbrains.kotlin.gradle.plugin.mpp.pm20.util.*
-import org.jetbrains.kotlin.gradle.plugin.sources.*
-import org.jetbrains.kotlin.gradle.utils.*
-import org.jetbrains.kotlin.tooling.core.closure
-import java.util.*
-
-interface CompilationDetails<T : KotlinCommonOptions> {
-    val target: KotlinTarget
-
-    val compileDependencyFilesHolder: GradleKpmDependencyFilesHolder
-
-    val kotlinDependenciesHolder: HasKotlinDependencies
-
-    val compilationData: KotlinCompilationData<T>
-
-    fun associateWith(other: CompilationDetails<*>)
-    val associateCompilations: Set<CompilationDetails<*>>
-
-    fun source(sourceSet: KotlinSourceSet)
-
-    val kotlinSourceSets: ObservableSet<KotlinSourceSet>
-
-    val allKotlinSourceSets: ObservableSet<KotlinSourceSet>
-
-    val defaultSourceSet: KotlinSourceSet
-
-    @Deprecated("Use defaultSourceSet.name instead", ReplaceWith("defaultSourceSet.name"), level = DeprecationLevel.WARNING)
-    val defaultSourceSetName: String get() = defaultSourceSet.name
-
-    @Suppress("UNCHECKED_CAST")
-    val compilation: KotlinCompilation<T>
-        get() = target.compilations.getByName(compilationData.compilationPurpose) as KotlinCompilation<T>
-}
-
-interface CompilationDetailsWithRuntime<T : KotlinCommonOptions> : CompilationDetails<T> {
-    val runtimeDependencyFilesHolder: GradleKpmDependencyFilesHolder
-}
-
-internal val CompilationDetails<*>.associateCompilationsClosure: Iterable<CompilationDetails<*>>
-    get() = closure { it.associateCompilations }
-
-