Disable testSignInOpenSettings and testSignInAndTapSettingsLink on iOS.

ios/chrome/browser/ui/authentication/signin_interaction_controller_egtest.mm

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import <EarlGrey/EarlGrey.h>
 #import <XCTest/XCTest.h>
 
 #include "base/strings/sys_string_conversions.h"
 #import "base/test/ios/wait_util.h"
 #include "components/signin/core/browser/signin_manager.h"
@@ skipping 351 matching lines @@
   // Close Settings.
   TapButtonWithLabelId(IDS_IOS_NAVIGATION_BAR_DONE_BUTTON);
 
   // Check that there is no signed in user.
   AssertAuthenticatedIdentityInActiveProfile(nil);
 }
 
 // Tests that signing in, tapping the Settings link on the confirmation screen
 // and closing the Settings correctly leaves the user signed in without any
 // Settings shown.
-- (void)testSignInOpenSettings {
+// TODO(crbug.com/718023): Re-enable test.
+- (void)testSignInOpenSettings_DISABLED {
   ChromeIdentity* identity = GetFakeIdentity1();
   ios::FakeChromeIdentityService::GetInstanceFromChromeProvider()->AddIdentity(
       identity);
 
   // Sign in to |identity|.
   OpenSignInFromSettings();
   TapButtonWithAccessibilityLabel(identity.userEmail);
   TapButtonWithLabelId(IDS_IOS_ACCOUNT_CONSISTENCY_SETUP_SIGNIN_BUTTON);
 
   // Tap Settings link.
@@ skipping 208 matching lines @@
       assertWithMatcher:grey_sufficientlyVisible()];
 
   // Close sign-in screen and Bookmarks.
   TapButtonWithLabelId(IDS_IOS_ACCOUNT_CONSISTENCY_SETUP_SKIP_BUTTON);
   if (!IsIPadIdiom()) {
     TapButtonWithLabelId(IDS_IOS_NAVIGATION_BAR_DONE_BUTTON);
   }
 }
 
 @end