diff --git a/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/transformers/mpp/FirExpectActualMatcherTransformer.kt b/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/transformers/mpp/FirExpectActualMatcherTransformer.kt
index a92cf94f6fa..65b1668efc3 100644
--- a/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/transformers/mpp/FirExpectActualMatcherTransformer.kt
+++ b/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/transformers/mpp/FirExpectActualMatcherTransformer.kt
@@ -89,12 +89,5 @@ open class FirExpectActualMatcherTransformer(
             scopeSession
         ) ?: mapOf()
         memberDeclaration.expectForActual = expectForActualData
-        for ((compatibility, expectSymbols) in expectForActualData) {
-            if (compatibility.compatible) {
-                for (expectSymbol in expectSymbols) {
-                    expectSymbol.fir.setActualForExpect(session, actualSymbol)
-                }
-            }
-        }
     }
 }
diff --git a/compiler/fir/tree/src/org/jetbrains/kotlin/fir/declarations/ExpectActualAttributes.kt b/compiler/fir/tree/src/org/jetbrains/kotlin/fir/declarations/ExpectActualAttributes.kt
index 433c22a3c43..2285bd227ad 100644
--- a/compiler/fir/tree/src/org/jetbrains/kotlin/fir/declarations/ExpectActualAttributes.kt
+++ b/compiler/fir/tree/src/org/jetbrains/kotlin/fir/declarations/ExpectActualAttributes.kt
@@ -5,23 +5,19 @@
 
 package org.jetbrains.kotlin.fir.declarations
 
-import org.jetbrains.kotlin.fir.FirSession
 import org.jetbrains.kotlin.fir.symbols.FirBasedSymbol
 import org.jetbrains.kotlin.fir.symbols.SymbolInternals
 import org.jetbrains.kotlin.fir.symbols.impl.FirFunctionSymbol
 import org.jetbrains.kotlin.fir.symbols.lazyResolveToPhase
 import org.jetbrains.kotlin.resolve.multiplatform.ExpectActualCompatibility
 import org.jetbrains.kotlin.resolve.multiplatform.compatible
-import java.util.*
 
 private object ExpectForActualAttributeKey : FirDeclarationDataKey()
-private object ActualForExpectAttributeKey : FirDeclarationDataKey()
 
 typealias ExpectForActualData = Map<ExpectActualCompatibility<FirBasedSymbol<*>>, List<FirBasedSymbol<*>>>
 
 @SymbolInternals
 var FirDeclaration.expectForActual: ExpectForActualData? by FirDeclarationDataRegistry.data(ExpectForActualAttributeKey)
-private var FirDeclaration.actualForExpectMap: WeakHashMap<FirSession, FirBasedSymbol<*>>? by FirDeclarationDataRegistry.data(ActualForExpectAttributeKey)
 
 fun FirFunctionSymbol<*>.getSingleCompatibleExpectForActualOrNull() =
     (this as FirBasedSymbol<*>).getSingleCompatibleExpectForActualOrNull() as? FirFunctionSymbol<*>
@@ -47,32 +43,3 @@ val FirBasedSymbol<*>.expectForActual: ExpectForActualData?
         return fir.expectForActual
     }
 
-private fun FirDeclaration.getOrCreateActualForExpectMap(): WeakHashMap<FirSession, FirBasedSymbol<*>> {
-    var map = actualForExpectMap
-    if (map != null) return map
-    synchronized(this) {
-        map = actualForExpectMap
-        if (map == null) {
-            map = WeakHashMap()
-            actualForExpectMap = map
-        }
-    }
-    return map!!
-}
-
-@SymbolInternals
-fun FirDeclaration.getActualForExpect(useSiteSession: FirSession): FirBasedSymbol<*>? {
-    return actualForExpectMap?.get(useSiteSession)
-}
-
-fun FirBasedSymbol<*>.getActualForExpect(session: FirSession): FirBasedSymbol<*>? {
-    lazyResolveToPhase(FirResolvePhase.EXPECT_ACTUAL_MATCHING)
-    return fir.getActualForExpect(session)
-}
-
-@SymbolInternals
-fun FirDeclaration.setActualForExpect(useSiteSession: FirSession, actualSymbol: FirBasedSymbol<*>) {
-    val map = getOrCreateActualForExpectMap()
-    map[useSiteSession] = actualSymbol
-}
-