Deprecate --gfe2_reloadable_flag_quic_limit_encoder_stream_buffering.

PiperOrigin-RevId: 432979519

quic/core/qpack/qpack_encoder.cc

diff --git a/quic/core/qpack/qpack_encoder.cc b/quic/core/qpack/qpack_encoder.cc
index 974f7b2..8037542 100644
--- a/quic/core/qpack/qpack_encoder.cc
+++ b/quic/core/qpack/qpack_encoder.cc
@@ -13,8 +13,6 @@
 #include "quic/core/qpack/qpack_instruction_encoder.h"
 #include "quic/core/qpack/qpack_required_insert_count.h"
 #include "quic/core/qpack/value_splitting_header_list.h"
-#include "quic/platform/api/quic_flag_utils.h"
-#include "quic/platform/api/quic_flags.h"
 #include "quic/platform/api/quic_logging.h"
 
 namespace quic {
@@ -87,11 +85,7 @@
   const QuicByteCount initial_encoder_stream_buffered_byte_count =
       encoder_stream_sender_.BufferedByteCount();
 
-  bool can_write_to_encoder_stream = true;
-  if (GetQuicReloadableFlag(quic_limit_encoder_stream_buffering)) {
-    QUIC_RELOADABLE_FLAG_COUNT(quic_limit_encoder_stream_buffering);
-    can_write_to_encoder_stream = encoder_stream_sender_.CanWrite();
-  }
+  const bool can_write_to_encoder_stream = encoder_stream_sender_.CanWrite();
 
   Representations representations;
   representations.reserve(header_list.size());

quic/core/qpack/qpack_encoder_test.cc

diff --git a/quic/core/qpack/qpack_encoder_test.cc b/quic/core/qpack/qpack_encoder_test.cc
index 30f578e..7f75f97 100644
--- a/quic/core/qpack/qpack_encoder_test.cc
+++ b/quic/core/qpack/qpack_encoder_test.cc
@@ -10,7 +10,6 @@
 #include "absl/strings/escaping.h"
 #include "absl/strings/str_cat.h"
 #include "absl/strings/string_view.h"
-#include "quic/platform/api/quic_flags.h"
 #include "quic/platform/api/quic_test.h"
 #include "quic/test_tools/qpack/qpack_encoder_peer.h"
 #include "quic/test_tools/qpack/qpack_encoder_test_utils.h"
@@ -499,10 +498,6 @@
 }
 
 TEST_F(QpackEncoderTest, EncoderStreamWritesDisallowedThenAllowed) {
-  if (!GetQuicReloadableFlag(quic_limit_encoder_stream_buffering)) {
-    return;
-  }
-
   EXPECT_CALL(encoder_stream_sender_delegate_, NumBytesBuffered())
       .WillRepeatedly(Return(kTooManyBytesBuffered));
   encoder_.SetMaximumBlockedStreams(1);
@@ -564,10 +559,6 @@
 }
 
 TEST_F(QpackEncoderTest, EncoderStreamWritesAllowedThenDisallowed) {
-  if (!GetQuicReloadableFlag(quic_limit_encoder_stream_buffering)) {
-    return;
-  }
-
   EXPECT_CALL(encoder_stream_sender_delegate_, NumBytesBuffered())
       .WillRepeatedly(Return(0));
   encoder_.SetMaximumBlockedStreams(1);

quic/core/quic_flags_list.h

diff --git a/quic/core/quic_flags_list.h b/quic/core/quic_flags_list.h
index 90cd7c4..6e3ce64 100644
--- a/quic/core/quic_flags_list.h
+++ b/quic/core/quic_flags_list.h
@@ -27,8 +27,6 @@
 QUIC_FLAG(FLAGS_quic_reloadable_flag_quic_use_lower_min_for_trusted_irtt, false)
 // If true, QUIC will default enable MTU discovery at server, with a target of 1450 bytes.
 QUIC_FLAG(FLAGS_quic_reloadable_flag_quic_enable_mtu_discovery_at_server, false)
-// If true, QpackEncoder will stop emitting instructions on the encoder stream if amount of buffered data exceeds a hardcoded limit.
-QUIC_FLAG(FLAGS_quic_reloadable_flag_quic_limit_encoder_stream_buffering, true)
 // If true, QuicGsoBatchWriter will support release time if it is available and the process has the permission to do so.
 QUIC_FLAG(FLAGS_quic_restart_flag_quic_support_release_time_for_gso, false)
 // If true, TlsServerHandshaker will be able to 1) request client cert, and 2) verify the client cert in the virtual method TlsServerHandshaker::VerifyCertChain.