[Mac, Win] Only show the user manager tutorial if "See what's new" is clicked.

chrome/common/pref_names.cc

Index: chrome/common/pref_names.cc
diff --git a/chrome/common/pref_names.cc b/chrome/common/pref_names.cc
index 81ce286b34b6f3b619fa79e23b2f67f8daa59b3e..b68a4a02130ea69657211ec986bac1f8f2450ca6 100644
--- a/chrome/common/pref_names.cc
+++ b/chrome/common/pref_names.cc
@@ -1154,10 +1154,6 @@ const char kProfileGAIAInfoPictureURL[] = "profile.gaia_info_picture_url";
 const char kProfileAvatarTutorialShown[] =
     "profile.avatar_bubble_tutorial_shown";
 
-// Boolean that specifies whether we have shown the user manager tutorial.
-const char kProfileUserManagerTutorialShown[] =
-    "profile.user_manager_tutorial_shown";
-
 // Indicates if we've already shown a notification that high contrast
 // mode is on, recommending high-contrast extensions and themes.
 const char kInvertNotificationShown[] = "invert_notification_version_2_shown";