FIR: Minor. Drop unused parameter

compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/inference/FirCallCompleter.kt

@@ -175,7 +175,6 @@ class FirCallCompleter(
             receiverType: ConeKotlinType?,
             parameters: List<ConeKotlinType>,
             expectedReturnType: ConeKotlinType?,
-            rawReturnType: ConeKotlinType,
             stubsForPostponedVariables: Map<TypeVariableMarker, StubTypeMarker>
         ): ReturnArgumentsAnalysisResult {
             val lambdaArgument: FirAnonymousFunction = lambdaAtom.atom

compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/inference/PostponedArgumentsAnalyzer.kt

@@ -37,7 +37,6 @@ interface LambdaAnalyzer {
         receiverType: ConeKotlinType?,
         parameters: List<ConeKotlinType>,
         expectedReturnType: ConeKotlinType?, // null means, that return type is not proper i.e. it depends on some type variables
-        rawReturnType: ConeKotlinType,
         stubsForPostponedVariables: Map<TypeVariableMarker, StubTypeMarker>
     ): ReturnArgumentsAnalysisResult
 }
@@ -129,7 +128,6 @@ class PostponedArgumentsAnalyzer(
             receiver,
             parameters,
             expectedTypeForReturnArguments,
-            rawReturnType,
             stubsForPostponedVariables
         )
         applyResultsOfAnalyzedLambdaToCandidateSystem(c, lambda, candidate, results, expectedTypeForReturnArguments, ::substitute)