Fix Java 9 module tests for many JDKs

Module 'oracle.desktop' is not guaranteed to be present in JDK. Also,
its usage in these tests doesn't check anything new that isn't already
checked by usages of jdk.net and jdk.httpserver.

compiler/testData/javaModules/jdkModulesFromUnnamed/main/test.kt

@@ -1,4 +1,4 @@
-fun main(args: Array<String>) {
+fun main() {
     // Module java.naming
     val b: javax.naming.Binding? = null
     println(b)
@@ -10,8 +10,4 @@ fun main(args: Array<String>) {
     // Module jdk.httpserver
     val s: com.sun.net.httpserver.HttpServer? = null
     println(s)
-
-    // Module oracle.desktop
-    val a: com.oracle.awt.AWTUtils? = null
-    println(a)
 }