Revert "Added a ForceYouTubeRestrict policy and deprecated the old ForceYouTubeSafetyMode policy"

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 b30924627c40a8dc49ab4043116d31576cf51bca..97a22ec799ffc13bcc775b6ff1783f47ffe41d1e 100644
--- a/chrome/common/pref_names.cc
+++ b/chrome/common/pref_names.cc
@@ -927,9 +927,8 @@ const char kMdHistoryMenuPromoShown[] = "history.menu_promo_shown";
 // Boolean controlling whether SafeSearch is mandatory for Google Web Searches.
 const char kForceGoogleSafeSearch[] = "settings.force_google_safesearch";
 
-// Integer controlling whether Restrict Mode (moderate/strict) is mandatory on
-// YouTube. See |safe_search_util::YouTubeRestrictMode| for possible values.
-const char kForceYouTubeRestrict[] = "settings.force_youtube_restrict";
+// Boolean controlling whether Safety Mode is mandatory on YouTube.
+const char kForceYouTubeSafetyMode[] = "settings.force_youtube_safety_mode";
 
 // Boolean controlling whether history is recorded via Session Sync
 // (for supervised users).