[Gradle, JS] Update IC test project with multiple artifacts

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/kotlin/org/jetbrains/kotlin/gradle/Kotlin2JsGradlePluginIT.kt

@@ -176,8 +176,6 @@ class Kotlin2JsIrGradlePluginIT : AbstractKotlin2JsGradlePluginIT(true) {
     @GradleTest
     fun testJsIrIncrementalMultipleArtifacts(gradleVersion: GradleVersion) {
         project("kotlin-js-ir-ic-multiple-artifacts", gradleVersion) {
-            buildGradleKts.modify(::transformBuildScriptWithPluginsDsl)
-
             build("compileDevelopmentExecutableKotlinJs") {
                 val cacheDir = projectPath.resolve("app/build/klib/cache/lib/")
                     .toFile()
@@ -1207,8 +1205,6 @@ abstract class AbstractKotlin2JsGradlePluginIT(protected val irBackend: Boolean)
     @GradleTest
     fun testIncrementalCompilationWithMultipleModulesAfterCompilationError(gradleVersion: GradleVersion) {
         project("kotlin-js-ir-ic-multiple-artifacts", gradleVersion) {
-            buildGradleKts.modify(::transformBuildScriptWithPluginsDsl)
-
             build("compileKotlinJs")
 
             val libKt = subProject("lib").kotlinSourcesDir().resolve("Lib.kt") ?: error("No Lib.kt file in test project")

libraries/tools/kotlin-gradle-plugin-integration-tests/src/test/resources/testProject/kotlin-js-ir-ic-multiple-artifacts/build.gradle.kts

@@ -1,5 +1,5 @@
 plugins {
-    kotlin("js").version("<pluginMarkerVersion>").apply(false)
+    kotlin("js").apply(false)
 }
 
 group = "com.example"