diff --git a/plugins/fir/fir-plugin-prototype/plugin-annotations/src/org/jetbrains/kotlin/fir/plugin/LibraryClassWithNestedClass.kt b/plugins/fir/fir-plugin-prototype/plugin-annotations/src/org/jetbrains/kotlin/fir/plugin/LibraryClassWithNestedClass.kt
deleted file mode 100644
index 770926efc4d..00000000000
--- a/plugins/fir/fir-plugin-prototype/plugin-annotations/src/org/jetbrains/kotlin/fir/plugin/LibraryClassWithNestedClass.kt
+++ /dev/null
@@ -1,12 +0,0 @@
-/*
- * Copyright 2010-2020 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.fir.plugin
-
-abstract class LibraryClassWithNestedClass {
-    open class NestedClass {
-        fun foo() {}
-    }
-}
\ No newline at end of file