[light classes] move KtLightClassForFacade to light-classes-base module

^KT-53097

compiler/light-classes/src/org/jetbrains/kotlin/asJava/classes/KtLightClassForFacade.kt

@@ -1,16 +0,0 @@
-/*
- * Copyright 2010-2021 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.asJava.classes
-
-import org.jetbrains.kotlin.name.FqName
-import org.jetbrains.kotlin.psi.KtFile
-
-interface KtLightClassForFacade : KtLightClass {
-    val facadeClassFqName: FqName
-    val files: Collection<KtFile>
-
-    override fun getName() = facadeClassFqName.shortName().asString()
-}