Revert "oobe a11y: Add a test to verify profile switch during user login."

This reverts commit 0c9cf96c.

Reason for revert:
SigninToUserProfileSwitchTest.LoginAsNewUser  fails on 
Linux ChromiumOS MSan Tests
https://ci.chromium.org/p/chromium/builders/ci/Linux%20ChromiumOS%20MSan%20Tests


Original change's description:
> oobe a11y: Add a test to verify profile switch during user login.
>
> Profile switches between signin and user during the login. Accessibility
> manager should correctly switch the profile.
>
> Also reeanbled OobeSpokenFeedbackTest on MSAN. It's already filtered out
> by chromeos.msan.browser_tests.oobe_(positive|negative).filter files.
>
> Bug: 1108996
> Change-Id: Ic586f7172e26bd965c42a9a566005fd872a69697
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2474696
> Commit-Queue: Roman Sorokin [CET] <rsorokin@chromium.org>
> Reviewed-by: David Tseng <dtseng@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#817861}

TBR=dtseng@chromium.org,rsorokin@chromium.org

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: 1108996
Change-Id: Id4858df82ccefccb59265feaee160ea783b62798
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2485773Reviewed-by: Lan Wei <lanwei@chromium.org>
Commit-Queue: Lan Wei <lanwei@chromium.org>
Cr-Commit-Position: refs/heads/master@{#818518}

chrome/browser/chromeos/accessibility/spoken_feedback_browsertest.cc

@@ -23,12 +23,7 @@
 #include "build/build_config.h"
 #include "chrome/app/chrome_command_ids.h"
 #include "chrome/browser/chromeos/accessibility/accessibility_manager.h"
-#include "chrome/browser/chromeos/login/screens/sync_consent_screen.h"
-#include "chrome/browser/chromeos/login/test/device_state_mixin.h"
-#include "chrome/browser/chromeos/login/test/login_manager_mixin.h"
 #include "chrome/browser/chromeos/login/test/oobe_base_test.h"
-#include "chrome/browser/chromeos/profiles/profile_helper.h"
-#include "chrome/browser/profiles/profile_manager.h"
 #include "chrome/browser/ui/ash/launcher/chrome_launcher_controller.h"
 #include "chrome/browser/ui/aura/accessibility/automation_manager_aura.h"
 #include "chrome/browser/ui/browser.h"
@@ -38,7 +33,6 @@
 #include "chrome/common/extensions/extension_constants.h"
 #include "chrome/test/base/interactive_test_utils.h"
 #include "chrome/test/base/ui_test_utils.h"
-#include "chromeos/constants/chromeos_features.h"
 #include "chromeos/constants/chromeos_switches.h"
 #include "components/user_manager/user_names.h"
 #include "content/public/browser/browser_task_traits.h"
@@ -942,7 +936,13 @@ class OobeSpokenFeedbackTest : public OobeBaseTest {
   DISALLOW_COPY_AND_ASSIGN(OobeSpokenFeedbackTest);
 };
 
-IN_PROC_BROWSER_TEST_F(OobeSpokenFeedbackTest, SpokenFeedbackInOobe) {
+#if defined(MEMORY_SANITIZER)
+// Times out under MSan: https://crbug.com/1071693
+#define MAYBE_SpokenFeedbackInOobe DISABLED_SpokenFeedbackInOobe
+#else
+#define MAYBE_SpokenFeedbackInOobe SpokenFeedbackInOobe
+#endif
+IN_PROC_BROWSER_TEST_F(OobeSpokenFeedbackTest, MAYBE_SpokenFeedbackInOobe) {
   ui_controls::EnableUIControls();
   ASSERT_FALSE(AccessibilityManager::Get()->IsSpokenFeedbackEnabled());
   AccessibilityManager::Get()->EnableSpokenFeedback(true);
@@ -960,45 +960,4 @@ IN_PROC_BROWSER_TEST_F(OobeSpokenFeedbackTest, SpokenFeedbackInOobe) {
   sm_.Replay();
 }
 
-class SigninToUserProfileSwitchTest : public OobeSpokenFeedbackTest {
- public:
-  // OobeSpokenFeedbackTest:
-  void SetUpCommandLine(base::CommandLine* command_line) override {
-    OobeSpokenFeedbackTest::SetUpCommandLine(command_line);
-    // Force the help app to launch in the background.
-    command_line->AppendSwitch(switches::kForceFirstRunUI);
-  }
-
- protected:
-  LoginManagerMixin login_manager_{&mixin_host_};
-  DeviceStateMixin device_state_{
-      &mixin_host_, DeviceStateMixin::State::OOBE_COMPLETED_UNOWNED};
-};
-
-// Verifies that spoken feedback correctly handles profile switch (signin ->
-// user) and announces the sync consent screen correctly.
-IN_PROC_BROWSER_TEST_F(SigninToUserProfileSwitchTest, LoginAsNewUser) {
-  // Force sync screen.
-  auto reset = SyncConsentScreen::ForceBrandedBuildForTesting(true);
-  AccessibilityManager::Get()->EnableSpokenFeedback(true);
-  sm_.ExpectSpeechPattern("*");
-
-  sm_.Call([this]() {
-    ASSERT_EQ(chromeos::AccessibilityManager::Get()->profile(),
-              ProfileHelper::GetSigninProfile());
-    login_manager_.LoginAsNewRegularUser();
-  });
-
-  std::string button_title =
-      features::IsSplitSettingsSyncEnabled() ? "Got it" : "Accept and continue";
-  sm_.ExpectSpeech(button_title);
-
-  // Check that profile switched to the active user.
-  sm_.Call([]() {
-    ASSERT_EQ(chromeos::AccessibilityManager::Get()->profile(),
-              ProfileManager::GetActiveUserProfile());
-  });
-  sm_.Replay();
-}
-
 }  // namespace chromeos