diff --git a/konan/library-reader/src/org/jetbrains/kotlin/konan/util/ProfilingUtils.kt b/konan/library-reader/src/org/jetbrains/kotlin/konan/util/ProfilingUtils.kt
deleted file mode 100644
index 06405b376c5..00000000000
--- a/konan/library-reader/src/org/jetbrains/kotlin/konan/util/ProfilingUtils.kt
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * Copyright 2010-2018 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.konan.util
-
-import kotlin.system.measureTimeMillis
-
-fun printMillisec(message: String, body: () -> Unit) {
-    val msec = measureTimeMillis {
-        body()
-    }
-    println("$message: $msec msec")
-}
-
-fun profile(message: String, body: () -> Unit) = profileIf(
-    System.getProperty("konan.profile")?.equals("true") ?: false,
-    message, body
-)
-
-fun profileIf(condition: Boolean, message: String, body: () -> Unit) =
-    if (condition) printMillisec(message, body) else body()
diff --git a/konan/library-reader/src/org/jetbrains/kotlin/konan/util/Substitution.kt b/konan/library-reader/src/org/jetbrains/kotlin/konan/util/Substitution.kt
deleted file mode 100644
index a3436db5289..00000000000
--- a/konan/library-reader/src/org/jetbrains/kotlin/konan/util/Substitution.kt
+++ /dev/null
@@ -1,33 +0,0 @@
-/*
- * Copyright 2010-2018 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.konan.util
-
-import org.jetbrains.kotlin.konan.target.KonanTarget
-import java.util.*
-
-fun defaultTargetSubstitutions(target: KonanTarget) =
-    mapOf(
-        "target" to target.visibleName,
-        "arch" to target.architecture.visibleName,
-        "family" to target.family.visibleName
-    )
-
-// Performs substitution similar to:
-//  foo = ${foo} ${foo.${arch}} ${foo.${os}}
-fun substitute(properties: Properties, substitutions: Map<String, String>) {
-    for (key in properties.stringPropertyNames()) {
-        for (substitution in substitutions.values) {
-            val suffix = ".$substitution"
-            if (key.endsWith(suffix)) {
-                val baseKey = key.removeSuffix(suffix)
-                val oldValue = properties.getProperty(baseKey, "")
-                val appendedValue = properties.getProperty(key, "")
-                val newValue = if (oldValue != "") "$oldValue $appendedValue" else appendedValue
-                properties.setProperty(baseKey, newValue)
-            }
-        }
-    }
-}