[SLC] drop SymbolLightIdentifier

^KT-54051

analysis/symbol-light-classes/src/org/jetbrains/kotlin/light/classes/symbol/SymbolLightIdentifier.kt

@@ -1,35 +0,0 @@
-/*
- * Copyright 2010-2022 JetBrains s.r.o. and Kotlin Programming Language contributors.
- * Use of this source code is governed by the Apache 2.0 license that can be found in the license/LICENSE.txt file.
- */
-
-package org.jetbrains.kotlin.light.classes.symbol
-
-import com.intellij.psi.PsiElement
-import org.jetbrains.kotlin.analysis.api.symbols.KtSymbol
-import org.jetbrains.kotlin.analysis.api.symbols.markers.KtNamedSymbol
-import org.jetbrains.kotlin.asJava.elements.KtLightIdentifierBase
-import org.jetbrains.kotlin.psi.KtNamedDeclaration
-import org.jetbrains.kotlin.psi.KtPrimaryConstructor
-import org.jetbrains.kotlin.psi.KtPropertyAccessor
-import org.jetbrains.kotlin.psi.KtSecondaryConstructor
-import org.jetbrains.kotlin.psi.psiUtil.containingClassOrObject
-
-internal class SymbolLightIdentifier(
-    lightOwner: PsiElement,
-    private val ktSymbol: KtSymbol?
-) : KtLightIdentifierBase(lightOwner, (ktSymbol as? KtNamedSymbol)?.name?.identifierOrNullIfSpecial) {
-    override fun copy(): PsiElement = SymbolLightIdentifier(parent, ktSymbol)
-
-    override val origin: PsiElement?
-        get() = when (val ktDeclaration = ktSymbol?.psi) {
-            is KtSecondaryConstructor -> ktDeclaration.getConstructorKeyword()
-            is KtPrimaryConstructor -> ktDeclaration.getConstructorKeyword()
-                ?: ktDeclaration.valueParameterList
-                ?: ktDeclaration.containingClassOrObject?.nameIdentifier
-
-            is KtPropertyAccessor -> ktDeclaration.namePlaceholder
-            is KtNamedDeclaration -> ktDeclaration.nameIdentifier
-            else -> null
-        }
-}