Remove the previous approach to build wasm stdlib variants

libraries/stdlib/wasm/js/build.gradle.kts

@@ -1,25 +0,0 @@
-import org.jetbrains.kotlin.gradle.targets.js.d8.D8RootPlugin
-import org.jetbrains.kotlin.gradle.targets.js.KotlinWasmTargetAttribute
-
-plugins {
-    `maven-publish`
-    kotlin("multiplatform")
-}
-
-description = "Kotlin Standard Library for experimental WebAssembly JS platform"
-
-D8RootPlugin.apply(rootProject).version = v8Version
-
-val targetDependentSources = listOf("builtins/kotlin", "internal", "src/kotlin", "src/kotlinx", "src/org.w3c").map {
-    "$rootDir/libraries/stdlib/wasm/js/$it"
-}
-
-configureWasmStdLib(
-    wasmTargetParameter = "wasm-js",
-    wasmTargetAttribute = KotlinWasmTargetAttribute.js,
-    targetDependentSources = targetDependentSources,
-    targetDependentTestSources = listOf("$rootDir/libraries/stdlib/wasm/js/test/"),
-    kotlinTestDependencyName = ":kotlin-test:kotlin-test-wasm-js"
-) { extensionBody ->
-    kotlin(extensionBody)
-}