[Test] Get rid of IrActualizerAndPluginsFacade

IR actualization and IR plugins will be moved into base Fir2Ir facades
  in the following commits, so this facade is not needed anymore

It was easier and cleanlier to remove this facade first and only after
  that modify base facades

js/js.tests/test/org/jetbrains/kotlin/js/test/ir/AbstractJsBlackBoxCodegenTestBase.kt

@@ -23,7 +23,6 @@ import org.jetbrains.kotlin.test.frontend.classic.handlers.ClassicDiagnosticsHan
 import org.jetbrains.kotlin.test.frontend.fir.handlers.FirDiagnosticsHandler
 import org.jetbrains.kotlin.test.model.*
 import org.jetbrains.kotlin.test.runners.AbstractKotlinCompilerWithTargetBackendTest
-import org.jetbrains.kotlin.test.runners.codegen.actualizersAndPluginsFacadeStepIfNeeded
 import org.jetbrains.kotlin.test.runners.codegen.commonClassicFrontendHandlersForCodegenTest
 import org.jetbrains.kotlin.test.services.LibraryProvider
 import org.jetbrains.kotlin.test.services.configuration.CommonEnvironmentConfigurator
@@ -155,7 +154,6 @@ fun <
     }
 
     facadeStep(frontendToBackendConverter)
-    actualizersAndPluginsFacadeStepIfNeeded(targetFrontend)
     irHandlersStep()
 
     facadeStep(backendFacade)