[FIR] Move jvm specific checkers to checkers.jvm module

compiler/fir/entrypoint/src/org/jetbrains/kotlin/fir/checkers/CheckersContainers.kt

@@ -18,7 +18,6 @@ fun FirSessionFactory.FirSessionConfigurator.registerExtendedCommonCheckers() {
     useCheckers(ExtendedDeclarationCheckers)
 }
 
-// TODO: Move this to different, JVM-specific module?
 fun FirSessionFactory.FirSessionConfigurator.registerJvmCheckers() {
     useCheckers(JvmDeclarationCheckers)
 }

compiler/fir/entrypoint/src/org/jetbrains/kotlin/fir/checkers/JvmDeclarationCheckers.kt

@@ -1,17 +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.fir.checkers
-
-import org.jetbrains.kotlin.fir.analysis.checkers.declaration.*
-import org.jetbrains.kotlin.fir.analysis.checkers.declaration.jvm.FirJvmExternalDeclarationChecker
-
-// TODO: Move this to different, JVM-specific module?
-object JvmDeclarationCheckers : DeclarationCheckers() {
-    override val memberDeclarationCheckers: Set<FirMemberDeclarationChecker>
-        get() = setOf(
-            FirJvmExternalDeclarationChecker,
-        )
-}