Bug 1251378 - Update fetch referrer policy test case. r=ehsan

MozReview-Commit-ID: HbRShNAXRG1

testing/web-platform/meta/fetch/api/policies/referrer-origin-worker.html.ini

@@ -1,6 +0,0 @@
-[referrer-origin-worker.html]
-  type: testharness
-  [Request's referrer is origin]
-    expected: FAIL
-    bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1251378
-