gfe-relnote: deprecate gfe2_restart_flag_quic_coalesce_stream_frames_2

PiperOrigin-RevId: 287871462
Change-Id: Ibc97d2acc253dc3c72a8246798df4098f81cbf2e
diff --git a/quic/core/quic_packet_creator.cc b/quic/core/quic_packet_creator.cc
index d272068..e52c965 100644
--- a/quic/core/quic_packet_creator.cc
+++ b/quic/core/quic_packet_creator.cc
@@ -1453,11 +1453,9 @@
     return false;
   }
 
-  if (GetQuicRestartFlag(quic_coalesce_stream_frames_2) &&
-      frame.type == STREAM_FRAME) {
+  if (frame.type == STREAM_FRAME) {
     if (MaybeCoalesceStreamFrame(frame.stream_frame)) {
       LogCoalesceStreamFrameStatus(true);
-      QUIC_RESTART_FLAG_COUNT_N(quic_coalesce_stream_frames_2, 1, 3);
       return true;
     } else {
       LogCoalesceStreamFrameStatus(false);