8361710: Mark QPathTest as unstable on all platforms

Reviewed-by: angorya, kizune

Author: kevinrushforth

tests/system/src/test/java/test/com/sun/marlin/QPathTest.java

@@ -29,7 +29,6 @@
 import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.fail;
 import static org.junit.jupiter.api.Assumptions.assumeTrue;
-import com.sun.javafx.PlatformUtil;
 import java.util.Locale;
 import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.TimeUnit;
@@ -152,9 +151,7 @@ public static void teardownOnce() {
     @Test
     @Timeout(value=15000, unit=TimeUnit.MILLISECONDS)
     public void TestBug() {
-        if (PlatformUtil.isLinux()) {
-            assumeTrue(Boolean.getBoolean("unstable.test")); // JDK-8328222
-        }
+        assumeTrue(Boolean.getBoolean("unstable.test")); // JDK-8328222
 
         Platform.runLater(() -> {
             SVGPath path = new SVGPath();