Removes get upload progress plumbing. URLRequest queries the UploadDataStream directly.

net/http/http_transaction_test_util.cc

Index: net/http/http_transaction_test_util.cc
diff --git a/net/http/http_transaction_test_util.cc b/net/http/http_transaction_test_util.cc
index 7c3639d2ca10411373a719dd51ba54cfd7a1f8a9..c1db33da1518b20230a2d4821acd24cdf82f2b5f 100644
--- a/net/http/http_transaction_test_util.cc
+++ b/net/http/http_transaction_test_util.cc
@@ -352,10 +352,6 @@ LoadState MockNetworkTransaction::GetLoadState() const {
   return LOAD_STATE_IDLE;
 }
 
-UploadProgress MockNetworkTransaction::GetUploadProgress() const {
-  return UploadProgress();
-}
-
 void MockNetworkTransaction::SetQuicServerInfo(
     QuicServerInfo* quic_server_info) {
 }