Removing iPad Tab Switcher experimental flag.

ios/chrome/browser/ui/tabs/tab_strip_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 "ios/chrome/browser/experimental_flags.h"
 #import "ios/chrome/browser/ui/tabs/tab_view.h"
 #import "ios/chrome/browser/ui/uikit_ui_util.h"
@@ skipping 37 matching lines @@
                                      grey_ancestor(grey_equalTo(tabView)),
                                      grey_accessibilityID(@"Favicon"), nil)]
         performAction:grey_tap()];
 
     Tab* newCurrentTab = chrome_test_util::GetCurrentTab();
     GREYAssertTrue(newCurrentTab == nextTab,
                    @"The selected tab did not change to the next tab.");
   }
 }
 
-// Tests switching the mode using the mode toggle.
-- (void)testTabStripSwitchModes {
-  // The toggle button only exists on iPad, and when the Tablet Tab Switcher
-  // isn't enabled.
-  if (IsCompact() || experimental_flags::IsTabSwitcherEnabled()) {
-    return;
-  }
-
-  // Open two normal tabs.
-  [ChromeEarlGreyUI openNewTab];
-  [ChromeEarlGreyUI openNewTab];
-
-  // Open two incognito tabs.
-  [ChromeEarlGreyUI openNewIncognitoTab];
-  [ChromeEarlGreyUI openNewIncognitoTab];
-
-  // Switch back to normal mode.
-  [[EarlGrey selectElementWithMatcher:
-                 grey_accessibilityLabel(l10n_util::GetNSString(
-                     IDS_IOS_SWITCH_BROWSER_MODE_LEAVE_INCOGNITO))]
-      performAction:grey_tap()];
-  GREYAssertFalse(chrome_test_util::IsIncognitoMode(),
-                  @"Current tab is incognito.");
-
-  // Switch back to incognito mode.
-  [[EarlGrey selectElementWithMatcher:
-                 grey_accessibilityLabel(l10n_util::GetNSString(
-                     IDS_IOS_SWITCH_BROWSER_MODE_ENTER_INCOGNITO))]
-      performAction:grey_tap()];
-  GREYAssertTrue(chrome_test_util::IsIncognitoMode(),
-                 @"Current tab is not incognito.");
-
-  // Close both incognito tabs.
-  chrome_test_util::CloseAllTabsInCurrentMode();
-
-  // We should be in normal mode.
-  GREYAssertFalse(chrome_test_util::IsIncognitoMode(),
-                  @"Current tab is incognito.");
-
-  // There should be no incognito switch.
-  [[EarlGrey selectElementWithMatcher:
-                 grey_accessibilityID(l10n_util::GetNSString(
-                     IDS_IOS_SWITCH_BROWSER_MODE_ENTER_INCOGNITO))]
-      assertWithMatcher:grey_notVisible()];
-}
-
 @end