bug 428567, ship RTL locales ar and he on Mac, too, now that bug 364536 is fixed, r,a=beltzner

browser/locales/shipped-locales

@@ -1,5 +1,5 @@
 af
-ar linux win32
+ar
 be
 ca
 cs
@@ -16,7 +16,7 @@ fr
 fy-NL
 ga-IE
 gu-IN linux win32
-he linux win32
+he
 hu
 id
 it