diff --git a/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/inference/FirInferenceSession.kt b/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/inference/FirInferenceSession.kt
index 13c37c6918e..73b41195e54 100644
--- a/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/inference/FirInferenceSession.kt
+++ b/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/inference/FirInferenceSession.kt
@@ -14,8 +14,6 @@ import org.jetbrains.kotlin.fir.types.ConeKotlinType
 import org.jetbrains.kotlin.fir.types.ConeTypeVariableTypeConstructor
 import org.jetbrains.kotlin.resolve.calls.inference.ConstraintSystemBuilder
 import org.jetbrains.kotlin.resolve.calls.inference.components.ConstraintSystemCompletionMode
-import org.jetbrains.kotlin.types.model.StubTypeMarker
-import org.jetbrains.kotlin.types.model.TypeVariableMarker
 
 abstract class FirInferenceSession {
     companion object {
@@ -33,8 +31,6 @@ abstract class FirInferenceSession {
     abstract fun <T> processPartiallyResolvedCall(call: T, resolutionMode: ResolutionMode) where T : FirResolvable, T : FirStatement
     abstract fun <T> addCompletedCall(call: T, candidate: Candidate) where T : FirResolvable, T : FirStatement
 
-    abstract fun registerStubTypes(map: Map<TypeVariableMarker, StubTypeMarker>)
-
     abstract fun inferPostponedVariables(
         lambda: ResolvedLambdaAtom,
         constraintSystemBuilder: ConstraintSystemBuilder,
@@ -42,7 +38,6 @@ abstract class FirInferenceSession {
         candidate: Candidate
     ): Map<ConeTypeVariableTypeConstructor, ConeKotlinType>?
 
-    abstract fun clear()
     open fun <R> onCandidatesResolution(call: FirFunctionCall, candidatesResolutionCallback: () -> R) = candidatesResolutionCallback()
 }
 
@@ -58,9 +53,4 @@ abstract class FirStubInferenceSession : FirInferenceSession() {
         completionMode: ConstraintSystemCompletionMode,
         candidate: Candidate
     ): Map<ConeTypeVariableTypeConstructor, ConeKotlinType>? = null
-
-    override fun registerStubTypes(map: Map<TypeVariableMarker, StubTypeMarker>) {}
-
-    override fun clear() {
-    }
 }
diff --git a/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/inference/FirInferenceSessionForChainedResolve.kt b/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/inference/FirInferenceSessionForChainedResolve.kt
index 1543acbed38..0df1f35d992 100644
--- a/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/inference/FirInferenceSessionForChainedResolve.kt
+++ b/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/inference/FirInferenceSessionForChainedResolve.kt
@@ -12,13 +12,11 @@ import org.jetbrains.kotlin.fir.resolve.ResolutionMode
 import org.jetbrains.kotlin.fir.resolve.calls.Candidate
 import org.jetbrains.kotlin.fir.resolve.calls.ResolutionContext
 import org.jetbrains.kotlin.fir.resolve.calls.candidate
-import org.jetbrains.kotlin.types.model.*
 
 abstract class FirInferenceSessionForChainedResolve(
     protected val resolutionContext: ResolutionContext
 ) : FirInferenceSession() {
     protected val partiallyResolvedCalls: MutableList<Pair<FirResolvable, Candidate>> = mutableListOf()
-    private val completedCalls: MutableSet<FirResolvable> = mutableSetOf()
 
     protected val components: BodyResolveComponents
         get() = resolutionContext.bodyResolveComponents
@@ -31,13 +29,6 @@ abstract class FirInferenceSessionForChainedResolve(
         partiallyResolvedCalls += call to call.candidate
     }
 
-    override fun registerStubTypes(map: Map<TypeVariableMarker, StubTypeMarker>) {}
-
     protected val FirResolvable.candidate: Candidate
         get() = candidate()!!
-
-    override fun clear() {
-        partiallyResolvedCalls.clear()
-        completedCalls.clear()
-    }
 }