Revert "[ios] Disable failing autofill tests."

This reverts commit 5e8f9218.

Reason for revert:
These tests failed due to a change to the Autofill predictions server in which it started sending UNKNOWN_TYPE for unknown fields (which signals Autofill not to fill and save form data) rather than NO_SERVER_DATA ( which signals Autofill to fall back to the local heuristics). Since these tests rely on saving a profile in order to populate the settings page and that the test form wasn't known to the predictions server, they started to fail. crbug.com/866922 is filed to eliminate that dependency.

Original change's description:
> [ios] Disable failing autofill tests.
> 
> TBR: sczs@chromium.org
> Bug: 866730
> Cq-Include-Trybots: luci.chromium.try:ios-simulator-full-configs;master.tryserver.chromium.mac:ios-simulator-cronet
> Change-Id: Ibc3828d336d5f6247f2a656d747e35847f86fd70
> Reviewed-on: https://chromium-review.googlesource.com/1147701
> Reviewed-by: Kurt Horimoto <kkhorimoto@chromium.org>
> Commit-Queue: Kurt Horimoto <kkhorimoto@chromium.org>
> Commit-Queue: Justin Cohen <justincohen@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#577384}

TBR=rohitrao@chromium.org,justincohen@chromium.org,kkhorimoto@chromium.org,sczs@chromium.org

Change-Id: Iba5ecab647a979cebf6d4b32894c665b356037b5
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 866730
Cq-Include-Trybots: luci.chromium.try:ios-simulator-full-configs;master.tryserver.chromium.mac:ios-simulator-cronet
Reviewed-on: https://chromium-review.googlesource.com/1148502Reviewed-by: Moe Ahmadi <mahmadi@chromium.org>
Commit-Queue: Moe Ahmadi <mahmadi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#577563}

ios/chrome/browser/ui/settings/autofill_settings_egtest.mm

@@ -127,9 +127,6 @@ NSString* GetTextFieldForID(int categoryId) {
 
 // Test that submitting a form ensures saving the data as an autofill profile.
 - (void)testAutofillProfileSaving {
-  // TODO(crbug.com/866730): Re-enable when fixed
-  EARL_GREY_TEST_DISABLED(@"Test broken.");
-
   [self loadAndSubmitTheForm];
   [self openEditAddress:@"George Washington, 1600 Pennsylvania Ave NW"];
 
@@ -150,9 +147,6 @@ NSString* GetTextFieldForID(int categoryId) {
 // Test that editing country names is followed by validating the value and
 // replacing it with a canonical one.
 - (void)testAutofillProfileEditing {
-  // TODO(crbug.com/866730): Re-enable when fixed
-  EARL_GREY_TEST_DISABLED(@"Test broken.");
-
   [self loadAndSubmitTheForm];
   [self openEditAddress:@"George Washington, 1600 Pennsylvania Ave NW"];
 
@@ -187,9 +181,6 @@ NSString* GetTextFieldForID(int categoryId) {
 
 // Test that the page for viewing autofill profile details is accessible.
 - (void)testAccessibilityOnAutofillProfileViewPage {
-  // TODO(crbug.com/866730): Re-enable when fixed
-  EARL_GREY_TEST_DISABLED(@"Test broken.");
-
   [self loadAndSubmitTheForm];
   [self openEditAddress:@"George Washington, 1600 Pennsylvania Ave NW"];
   chrome_test_util::VerifyAccessibilityForCurrentScreen();
@@ -199,9 +190,6 @@ NSString* GetTextFieldForID(int categoryId) {
 
 // Test that the page for editing autofill profile details is accessible.
 - (void)testAccessibilityOnAutofillProfileEditPage {
-  // TODO(crbug.com/866730): Re-enable when fixed
-  EARL_GREY_TEST_DISABLED(@"Test broken.");
-
   [self loadAndSubmitTheForm];
   [self openEditAddress:@"George Washington, 1600 Pennsylvania Ave NW"];
   // Switch on edit mode.
@@ -216,9 +204,6 @@ NSString* GetTextFieldForID(int categoryId) {
 // Checks that if the autofill profiles and credit cards list view is in edit
 // mode, the "autofill" and "wallet" switch items are disabled.
 - (void)testListViewEditMode {
-  // TODO(crbug.com/866730): Re-enable when fixed
-  EARL_GREY_TEST_DISABLED(@"Test broken.");
-
   [self loadAndSubmitTheForm];
 
   [ChromeEarlGreyUI openSettingsMenu];