K2: Remove unused completion logic

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

diff --git a/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/inference/FirCallCompleter.kt b/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/inference/FirCallCompleter.kt
index e0bf3d4..13ab7a6 100644
--- a/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/inference/FirCallCompleter.kt
+++ b/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/inference/FirCallCompleter.kt
@@ -58,8 +58,8 @@
 
     fun <T> completeCall(call: T, resolutionMode: ResolutionMode): CompletionResult<T> where T : FirResolvable, T : FirStatement {
         val typeRef = components.typeFromCallee(call)
-
-        val reference = call.calleeReference as? FirNamedReferenceWithCandidate ?: return CompletionResult(call, true)
+        val reference = call.calleeReference
+        require(reference is FirNamedReferenceWithCandidate)
 
         val candidate = reference.candidate
         val initialType = typeRef.initialTypeOfCandidate(candidate)

compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/transformers/body/resolve/FirExpressionsResolveTransformer.kt

diff --git a/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/transformers/body/resolve/FirExpressionsResolveTransformer.kt b/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/transformers/body/resolve/FirExpressionsResolveTransformer.kt
index 3763702..11c8ba6 100644
--- a/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/transformers/body/resolve/FirExpressionsResolveTransformer.kt
+++ b/compiler/fir/resolve/src/org/jetbrains/kotlin/fir/resolve/transformers/body/resolve/FirExpressionsResolveTransformer.kt
@@ -422,7 +422,6 @@
             functionCall.transformTypeArguments(transformer, ResolutionMode.ContextIndependent)
             val (completeInference, callCompleted) =
                 run {
-                    val initialExplicitReceiver = functionCall.explicitReceiver
                     val withTransformedArguments = if (!resolvingAugmentedAssignment) {
                         dataFlowAnalyzer.enterCallArguments(functionCall, functionCall.arguments)
                         // In provideDelegate mode the explicitReceiver is already resolved
@@ -440,11 +439,6 @@
                         functionCall
                     }
                     val resultExpression = callResolver.resolveCallAndSelectCandidate(withTransformedArguments)
-                    val resultExplicitReceiver = resultExpression.explicitReceiver?.unwrapSmartcastExpression()
-                    if (initialExplicitReceiver !== resultExplicitReceiver && resultExplicitReceiver is FirQualifiedAccessExpression) {
-                        // name.invoke() case
-                        callCompleter.completeCall(resultExplicitReceiver, ResolutionMode.ContextIndependent)
-                    }
                     callCompleter.completeCall(resultExpression, data)
                 }
             val result = completeInference.transformToIntegerOperatorCallOrApproximateItIfNeeded(data)