Remove kDistroDict from Preferences.

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 254cdb91ef98bf7cd0ad42a4b9c068a641f81993..39ee27b7fe1572085b2fe466a317229af82488f4 100644
--- a/chrome/common/pref_names.cc
+++ b/chrome/common/pref_names.cc
@@ -186,6 +186,11 @@ const char kSupervisedUserSharedSettings[] = "profile.managed.shared_settings";
 // (currently the name).
 const char kSupervisedUserWhitelists[] = "profile.managed.whitelists";
 
+#if BUILDFLAG(ENABLE_RLZ)
+// Integer. RLZ ping delay in seconds.
+const char kRlzPingDelay[] = "rlz_ping_delay";
+#endif  // BUILDFLAG(ENABLE_RLZ)
+
 // The application locale.
 // For OS_CHROMEOS we maintain the kApplicationLocale property in both local
 // state and the user's profile.  The global property determines the locale of