gfe-relnote: deprecate gfe2_reloadable_flag_quic_use_connection_encryption_level

PiperOrigin-RevId: 287871070
Change-Id: I9cedabef1f81c7690ac9435064f17090653545ee

quic/core/quic_crypto_stream.cc

diff --git a/quic/core/quic_crypto_stream.cc b/quic/core/quic_crypto_stream.cc
index b10ead7..62605d4 100644
--- a/quic/core/quic_crypto_stream.cc
+++ b/quic/core/quic_crypto_stream.cc
@@ -72,13 +72,7 @@
       << "Versions less than 47 shouldn't receive CRYPTO frames";
   EncryptionLevel level = session()->connection()->last_decrypted_level();
   substreams_[level].sequencer.OnCryptoFrame(frame);
-  EncryptionLevel frame_level;
-  if (GetQuicReloadableFlag(quic_use_connection_encryption_level)) {
-    QUIC_RELOADABLE_FLAG_COUNT(quic_use_connection_encryption_level);
-    frame_level = level;
-  } else {
-    frame_level = frame.level;
-  }
+  EncryptionLevel frame_level = level;
   if (substreams_[level].sequencer.NumBytesBuffered() >
       BufferSizeLimitForLevel(frame_level)) {
     CloseConnectionWithDetails(QUIC_FLOW_CONTROL_RECEIVED_TOO_MUCH_DATA,