Update geofencing layout tests to use mock service.

LayoutTests/http/tests/geofencing/resources/worker.js

Index: LayoutTests/http/tests/geofencing/resources/worker.js
diff --git a/LayoutTests/http/tests/geofencing/resources/worker.js b/LayoutTests/http/tests/geofencing/resources/worker.js
deleted file mode 100644
index 9fe7088999d1717780c9972a6a4a79eae6c55595..0000000000000000000000000000000000000000
--- a/LayoutTests/http/tests/geofencing/resources/worker.js
+++ /dev/null
@@ -1,22 +0,0 @@
-importScripts('../../serviceworker/resources/worker-testharness.js');
-importScripts('../../resources/testharness-helpers.js');
-
-promise_test(function(test) {
-    return navigator.geofencing.registerRegion(
-        new CircularGeofencingRegion({latitude: 37.421999,
-                                      longitude: -122.084015}))
-      .then(test.unreached_func('Promise should not have resolved'))
-      .catch(function() { });
-  }, 'registerRegion should fail');
-
-promise_test(function(test) {
-    return navigator.geofencing.unregisterRegion("")
-      .then(test.unreached_func('Promise should not have resolved'))
-      .catch(function() { });
-  }, 'unregisterRegion should fail');
-
-promise_test(function(test) {
-    return navigator.geofencing.getRegisteredRegions()
-      .then(test.unreached_func('Promise should not have resolved'))
-      .catch(function() { });
-  }, 'getRegisteredRegions should fail');