Revert of [Sync] Enable UserEvents by default.

chrome/browser/sync/profile_sync_service_factory_unittest.cc

Index: chrome/browser/sync/profile_sync_service_factory_unittest.cc
diff --git a/chrome/browser/sync/profile_sync_service_factory_unittest.cc b/chrome/browser/sync/profile_sync_service_factory_unittest.cc
index 8409ecf8335bf983bda9ff727b962f07c585fcaa..3c29971019b5afbf0307eba856513208b188f5e0 100644
--- a/chrome/browser/sync/profile_sync_service_factory_unittest.cc
+++ b/chrome/browser/sync/profile_sync_service_factory_unittest.cc
@@ -78,7 +78,6 @@
     datatypes.push_back(syncer::SUPERVISED_USER_SETTINGS);
     datatypes.push_back(syncer::SUPERVISED_USER_WHITELISTS);
     datatypes.push_back(syncer::TYPED_URLS);
-    datatypes.push_back(syncer::USER_EVENTS);
 
     return datatypes;
   }