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/jdkModulesFromNamed/main/module-info.java

@@ -1,7 +1,6 @@
 module main {
     requires java.naming;
     requires jdk.net;
-    requires oracle.desktop;
 
     requires kotlin.stdlib;
 }