Bug 1775175 - Update wpt expectation in opening-the-input-stream/url.window.html DONTBUILD

testing/web-platform/meta/html/webappapis/dynamic-markup-insertion/opening-the-input-stream/url.window.js.ini

@@ -1,8 +1,6 @@
 [url.window.html]
   [document.open() does not change document's URL (active but not fully active document)]
     expected:
-      if (os == "mac") and not debug: [FAIL, PASS]
-      if (os == "mac") and debug: PASS
       if (os == "win") and debug: PASS
       if os == "android": PASS
       [PASS, FAIL]