diff --git a/core/descriptors/src/org/jetbrains/kotlin/platform/platformUtil.kt b/core/descriptors/src/org/jetbrains/kotlin/platform/platformUtil.kt
index 509dc7743e0..86a997e8dd5 100644
--- a/core/descriptors/src/org/jetbrains/kotlin/platform/platformUtil.kt
+++ b/core/descriptors/src/org/jetbrains/kotlin/platform/platformUtil.kt
@@ -5,8 +5,6 @@
 
 package org.jetbrains.kotlin.platform
 
-import org.jetbrains.kotlin.utils.addToStdlib.firstIsInstanceOrNull
-
 inline fun <reified T : SimplePlatform> TargetPlatform.subplatformsOfType(): List<T> = componentPlatforms.filterIsInstance<T>()
 fun <T> TargetPlatform.subplatformsOfType(klass: Class<T>): List<T> = componentPlatforms.filterIsInstance(klass)