Stop using script-tests in fast/dom/.

third_party/WebKit/LayoutTests/fast/dom/Geolocation/script-tests/callback-to-deleted-context.js

-description("Tests that when a Geolocation request is made from a remote frame, and that frame's script context goes away before the Geolocation callback is made, the callback is made as usual.");
-
-function onFirstIframeLoaded() {
-    iframe.src = 'resources/callback-to-deleted-context-inner2.html';
-}
-
-function onSecondIframeLoaded() {
-    window.setTimeout(function() {
-        testFailed('No callbacks invoked');
-        finishJSTest();
-    }, 500);
-}
-
-var iframe = document.createElement('iframe');
-geolocationServiceMock.then(mock => {
-    mock.setGeolocationPermission(true);
-    mock.setGeolocationPosition(51.478, -0.166, 100);
-    iframe.src = 'resources/callback-to-deleted-context-inner1.html';
-    document.body.appendChild(iframe);
-});
-
-window.jsTestIsAsync = true;