6693961: cross-window focus transfer ability in the Focus Spec should be revised

Reviewed-by: ant, art

src/share/classes/java/awt/doc-files/FocusSpec.html

@@ -894,8 +894,7 @@ not the focused Window and the platform does not support requesting
 focus across Windows. If the request is denied for this reason, the
 request is remembered and will be granted when the Window is later
 focused by the user. Otherwise, the focus change request changes the
-focused Window as well. Currently, Microsoft Windows supports cross-Window 
-focus transfers while Solaris does not.
+focused Window as well.
 <p>
 There is no way to determine synchronously whether a focus change
 request has been granted. Instead, client code must install a