Revert of PaymentHandler: Implement PaymentInstruments.keys().

third_party/WebKit/LayoutTests/http/tests/payments/payment-instruments.html

Index: third_party/WebKit/LayoutTests/http/tests/payments/payment-instruments.html
diff --git a/third_party/WebKit/LayoutTests/http/tests/payments/payment-instruments.html b/third_party/WebKit/LayoutTests/http/tests/payments/payment-instruments.html
index 8b2c06bf9ea8da198c49ac2140b444fdbe99689e..8f36fcaf5e9f7e494e4f6a16157e7c86a40ccd60 100644
--- a/third_party/WebKit/LayoutTests/http/tests/payments/payment-instruments.html
+++ b/third_party/WebKit/LayoutTests/http/tests/payments/payment-instruments.html
@@ -119,46 +119,4 @@
       .catch(unreached_rejection(test));
   }, 'PaymentInstruments |has| method test');
 
-promise_test(test => {
-    var registration;
-    var script_url = 'resources/empty-worker.js';
-    var scope = 'resources/';
-
-    return service_worker_unregister_and_register(test, script_url, scope)
-      .then(r => {
-          registration = r;
-          return wait_for_state(test, registration.installing, 'activated');
-        })
-      .then(state => {
-          assert_equals(state, 'activated');
-          var instruments = [
-            registration.paymentManager.instruments.set(
-              'test_key1',
-              {
-                name: 'Visa ending ****4756',
-                enabledMethods: ['basic-card'],
-                capabilities: {
-                  supportedNetworks: ['visa'],
-                  supportedTypes: ['credit']
-                }
-              }),
-            registration.paymentManager.instruments.set(
-              'test_key2',
-              {
-                name: "My Bob Pay Account: john@example.com",
-                enabledMethods: ["https://bobpay.com/"]
-              })
-          ];
-          return Promise.all(instruments);
-        })
-      .then(result => {
-          assert_array_equals(result, [undefined, undefined]);
-          return registration.paymentManager.instruments.keys();
-        })
-      .then(result => {
-          assert_array_equals(result, ['test_key1', 'test_key2']);
-        })
-      .catch(unreached_rejection(test));
-  }, 'PaymentInstruments |keys| method test');
-
 </script>