Delete lots of sync ServerConnectionManager code

chrome/browser/sync/test/engine/mock_connection_manager.cc

Index: chrome/browser/sync/test/engine/mock_connection_manager.cc
diff --git a/chrome/browser/sync/test/engine/mock_connection_manager.cc b/chrome/browser/sync/test/engine/mock_connection_manager.cc
index 488f83730517e85f99d17d4e7497712a0311fc06..7d4f252375848af1e95009026290540940987ff3 100644
--- a/chrome/browser/sync/test/engine/mock_connection_manager.cc
+++ b/chrome/browser/sync/test/engine/mock_connection_manager.cc
@@ -170,14 +170,6 @@ bool MockConnectionManager::PostBufferToPath(PostBufferParams* params,
   return result;
 }
 
-bool MockConnectionManager::IsServerReachable() {
-  return true;
-}
-
-bool MockConnectionManager::IsUserAuthenticated() {
-  return true;
-}
-
 sync_pb::GetUpdatesResponse* MockConnectionManager::GetUpdateResponse() {
   if (update_queue_.empty()) {
     NextUpdateBatch();