MD Settings: drop confusing "Enable guest browsing" secondary text

chrome/browser/ui/webui/settings/md_settings_localized_strings_provider.cc

 // Copyright 2015 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.
 
 #include "chrome/browser/ui/webui/settings/md_settings_localized_strings_provider.h"
 
 #include <string>
 
 #include "base/command_line.h"
 #include "base/i18n/number_formatting.h"
@@ skipping 1013 matching lines @@
       autofill::payments::GetManageInstrumentsUrl(0).spec());
 
   AddLocalizedStringsBulk(html_source, localized_strings,
                           arraysize(localized_strings));
 }
 
 void AddPeopleStrings(content::WebUIDataSource* html_source) {
   LocalizedString localized_strings[] = {
     {"peoplePageTitle", IDS_SETTINGS_PEOPLE},
     {"manageOtherPeople", IDS_SETTINGS_PEOPLE_MANAGE_OTHER_PEOPLE},
-    {"manageOtherPeopleDescription",
-     IDS_SETTINGS_PEOPLE_MANAGE_OTHER_PEOPLE_DESCRIPTION},
     {"manageSupervisedUsers", IDS_SETTINGS_PEOPLE_MANAGE_SUPERVISED_USERS},
     {"manageSupervisedUsersDescription",
      IDS_SETTINGS_PEOPLE_MANAGE_SUPERVISED_USERS_DESCRIPTION},
 #if defined(OS_CHROMEOS)
     {"configurePinChoosePinTitle",
      IDS_SETTINGS_PEOPLE_CONFIGURE_PIN_CHOOSE_PIN_TITLE},
     {"configurePinConfirmPinTitle",
      IDS_SETTINGS_PEOPLE_CONFIGURE_PIN_CONFIRM_PIN_TITLE},
     {"configurePinContinueButton",
      IDS_SETTINGS_PEOPLE_CONFIGURE_PIN_CONTINUE_BUTTON},
@@ skipping 771 matching lines @@
 #if defined(USE_NSS_CERTS)
   AddCertificateManagerStrings(html_source);
 #endif
 
   policy_indicator::AddLocalizedStrings(html_source);
 
   html_source->SetJsonPath(kLocalizedStringsFile);
 }
 
 }  // namespace settings