diff --git a/compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/backend/Fir2IrImplicitCastInserter.kt b/compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/backend/Fir2IrImplicitCastInserter.kt
index a5d73efa452..e6ba56c2c10 100644
--- a/compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/backend/Fir2IrImplicitCastInserter.kt
+++ b/compiler/fir/fir2ir/src/org/jetbrains/kotlin/fir/backend/Fir2IrImplicitCastInserter.kt
@@ -31,10 +31,6 @@ class Fir2IrImplicitCastInserter(
     private val components: Fir2IrComponents
 ) : Fir2IrComponents by components, FirDefaultVisitor<IrElement, IrElement>() {
 
-    private fun FirTypeRef.toIrType(typeOrigin: ConversionTypeOrigin): IrType = with(typeConverter) {
-        toIrType(typeOrigin)
-    }
-
     private fun ConeKotlinType.toIrType(typeOrigin: ConversionTypeOrigin): IrType = with(typeConverter) {
         toIrType(typeOrigin)
     }