diff --git a/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/providers/SymbolProviderCache.kt b/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/providers/SymbolProviderCache.kt
deleted file mode 100644
index 451c738d3fc..00000000000
--- a/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/providers/SymbolProviderCache.kt
+++ /dev/null
@@ -1,48 +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.resolve.providers
-
-import org.jetbrains.kotlin.fir.PrivateForInline
-
-@Suppress("EXPERIMENTAL_FEATURE_WARNING")
-inline class SymbolProviderCache<K, V : Any> @PrivateForInline constructor(@PrivateForInline val cache: HashMap<K, Any>) {
-    @OptIn(PrivateForInline::class)
-    constructor() : this(HashMap())
-
-    @PrivateForInline
-    object NullValue
-
-    @OptIn(PrivateForInline::class)
-    inline fun lookupCacheOrCalculate(key: K, crossinline l: (K) -> V?): V? {
-        @Suppress("UNCHECKED_CAST")
-        return when (val value = cache[key]) {
-            null -> {
-                val calculated = l(key)
-                cache[key] = calculated ?: NullValue
-                calculated
-            }
-            NullValue -> null
-            else -> value as V
-        }
-    }
-
-    @OptIn(PrivateForInline::class)
-    operator fun contains(key: K): Boolean = key in cache
-
-    @Suppress("UNCHECKED_CAST")
-    @OptIn(PrivateForInline::class)
-    operator fun get(key: K): V? = cache[key].takeIf { it !== NullValue } as V?
-
-    @OptIn(PrivateForInline::class)
-    operator fun set(key: K, value: V) {
-        cache[key] = value
-    }
-
-    @OptIn(PrivateForInline::class)
-    fun remove(key: K) {
-        cache.remove(key)
-    }
-}