Remove NPM validation (#3312)

We will drop complete support of NPM as soon as JS IR is declared stable and this test is already a deadweight as it was never run due to misconfiguration

integration-testing/build.gradle

@@ -14,11 +14,6 @@ repositories {
 }
 
 sourceSets {
-    npmTest {
-        kotlin
-        compileClasspath += sourceSets.test.runtimeClasspath
-        runtimeClasspath += sourceSets.test.runtimeClasspath
-    }
     mavenTest {
         kotlin
         compileClasspath += sourceSets.test.runtimeClasspath
@@ -43,20 +38,6 @@ compileDebugAgentTestKotlin {
     }
 }
 
-task npmTest(type: Test) {
-    def sourceSet = sourceSets.npmTest
-    environment "projectRoot", project.rootDir
-    environment "deployVersion", version
-    def dryRunNpm = project.properties['dryRun']
-    def doRun = dryRunNpm == "true" // so that we don't accidentally publish anything, especially before the test
-    onlyIf { doRun }
-    if (doRun) { // `onlyIf` only affects execution of the task, not the dependency subtree
-        dependsOn(project(':').getTasksByName("publishNpm", true))
-    }
-    testClassesDirs = sourceSet.output.classesDirs
-    classpath = sourceSet.runtimeClasspath
-}
-
 task mavenTest(type: Test) {
     environment "version", version
     def sourceSet = sourceSets.mavenTest
@@ -96,8 +77,6 @@ task coreAgentTest(type: Test) {
 dependencies {
     testImplementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8"
     testImplementation 'junit:junit:4.12'
-    npmTestImplementation 'org.apache.commons:commons-compress:1.18'
-    npmTestImplementation 'com.google.code.gson:gson:2.8.5'
     debugAgentTestImplementation project(':kotlinx-coroutines-core')
     debugAgentTestImplementation project(':kotlinx-coroutines-debug')
     coreAgentTestImplementation project(':kotlinx-coroutines-core')
@@ -108,5 +87,5 @@ compileTestKotlin {
 }
 
 check {
-    dependsOn([npmTest, mavenTest, debugAgentTest, coreAgentTest])
+    dependsOn([mavenTest, debugAgentTest, coreAgentTest])
 }