Revert of Send a TrackedPreference incident when registry pref validation fails.

components/user_prefs/tracked/tracked_preference_helper.cc

Index: components/user_prefs/tracked/tracked_preference_helper.cc
diff --git a/components/user_prefs/tracked/tracked_preference_helper.cc b/components/user_prefs/tracked/tracked_preference_helper.cc
index cab44ad5642e3129702d6639c77c945ba9001f49..2d39749cf53c27f70741bdbe308e5c0ecfb9a20b 100644
--- a/components/user_prefs/tracked/tracked_preference_helper.cc
+++ b/components/user_prefs/tracked/tracked_preference_helper.cc
@@ -37,10 +37,6 @@
       return DONT_RESET;
     case PrefHashStoreTransaction::SECURE_LEGACY:
       // Accept secure legacy device ID based hashes.
-      return DONT_RESET;
-    case PrefHashStoreTransaction::UNSUPPORTED:
-      NOTREACHED()
-          << "GetAction should not be called with an UNSUPPORTED value state";
       return DONT_RESET;
     case PrefHashStoreTransaction::UNTRUSTED_UNKNOWN_VALUE:  // Falls through.
     case PrefHashStoreTransaction::CHANGED:
@@ -84,8 +80,6 @@
       histogram_name =
           user_prefs::tracked::kTrackedPrefHistogramNullInitialized;
       break;
-    case PrefHashStoreTransaction::UNSUPPORTED:
-      return;
     default:
       NOTREACHED() << "Unexpected PrefHashStoreTransaction::ValueState: "
                    << value_state;