Removing iPad Tab Switcher experimental flag.

ios/chrome/browser/ui/tab_switcher/tab_switcher_controller_egtest.mm

Index: ios/chrome/browser/ui/tab_switcher/tab_switcher_controller_egtest.mm
diff --git a/ios/chrome/browser/ui/tab_switcher/tab_switcher_controller_egtest.mm b/ios/chrome/browser/ui/tab_switcher/tab_switcher_controller_egtest.mm
index 63a6bd81dbe99db91a8d35a1eb66133c8553f5f2..554a28bc24990a2a3a7d24f612aeef5de751464f 100644
--- a/ios/chrome/browser/ui/tab_switcher/tab_switcher_controller_egtest.mm
+++ b/ios/chrome/browser/ui/tab_switcher/tab_switcher_controller_egtest.mm
@@ -6,7 +6,6 @@
 #import <UIKit/UIKit.h>
 #import <XCTest/XCTest.h>
 
-#include "base/test/scoped_command_line.h"
 #import "ios/chrome/app/main_controller_private.h"
 #include "ios/chrome/browser/chrome_switches.h"
 #import "ios/chrome/browser/ui/commands/generic_chrome_command.h"
@@ -86,16 +85,7 @@ void EnterTabSwitcherWithCommand() {
 @interface TabSwitcherControllerTestCase : ChromeTestCase
 @end
 
-@implementation TabSwitcherControllerTestCase {
-  std::unique_ptr<base::test::ScopedCommandLine> scoped_command_line_;
-}
-
-- (void)setUp {
-  [super setUp];
-  scoped_command_line_.reset(new base::test::ScopedCommandLine());
-  scoped_command_line_->GetProcessCommandLine()->AppendSwitch(
-      switches::kEnableTabSwitcher);
-}
+@implementation TabSwitcherControllerTestCase
 
 // Checks that the tab switcher is not presented.
 - (void)assertTabSwitcherIsInactive {