Revert "[Sync] Add version info to about:sync"

chrome/browser/sync/engine/all_status.cc

Index: chrome/browser/sync/engine/all_status.cc
diff --git a/chrome/browser/sync/engine/all_status.cc b/chrome/browser/sync/engine/all_status.cc
index 7a0fabee50218156398928b986f9be9d636bbecc..05b4f0f7bc89ac2e3f714d729969009620230292 100644
--- a/chrome/browser/sync/engine/all_status.cc
+++ b/chrome/browser/sync/engine/all_status.cc
@@ -188,11 +188,6 @@ void AllStatus::SetCryptoHasPendingKeys(bool has_pending_keys) {
   status_.crypto_has_pending_keys = has_pending_keys;
 }
 
-void AllStatus::SetUniqueId(const std::string& guid) {
-  ScopedStatusLock lock(this);
-  status_.unique_id = guid;
-}
-
 ScopedStatusLock::ScopedStatusLock(AllStatus* allstatus)
     : allstatus_(allstatus) {
   allstatus->mutex_.Acquire();