Auto merge of #12457 - johannhof:worker-global, r=Ms2ger

Expose Worker interfaces only to Worker

<!-- Please describe your changes on the following line: -->

Partial #12415. Let me know if you suspect some other tests may be affected by this.

r? @Ms2ger

---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [x] `./mach build -d` does not report any errors
- [x] `./mach test-tidy` does not report any errors

<!-- Either: -->
- [x] There (sorta) are tests for these changes

<!-- Pull requests that do not address these steps are welcome, but they will require additional verification as part of the review process. -->

<!-- Reviewable:start -->
---
This change is [<img src="https://reviewable.io/review_button.svg" height="34" align="absmiddle" alt="Reviewable"/>](https://reviewable.io/reviews/servo/servo/12457)
<!-- Reviewable:end -->

tests/wpt/metadata/html/dom/interfaces.html.ini

@@ -9675,12 +9675,3 @@
   [Event interface: calling initEvent(DOMString,boolean,boolean) on new TrackEvent("addtrack", {track:document.createElement("track").track}) with too few arguments must throw TypeError]
     expected: FAIL
 
-  [WorkerGlobalScope interface: existence and properties of interface object]
-    expected: FAIL
-
-  [WorkerNavigator interface: existence and properties of interface object]
-    expected: FAIL
-
-  [WorkerLocation interface: existence and properties of interface object]
-    expected: FAIL
-

tests/wpt/mozilla/tests/mozilla/interfaces.html

@@ -176,9 +176,6 @@ test_interfaces([
   "WebSocket",
   "Window",
   "Worker",
-  "WorkerGlobalScope", // #2823
-  "WorkerLocation", // #2823
-  "WorkerNavigator", // #2823
   "XMLDocument",
   "XMLHttpRequest",
   "XMLHttpRequestEventTarget",