Deprecate --gfe2_reloadable_flag_quic_trace_ssl_events.

PiperOrigin-RevId: 399495212

quic/core/quic_flags_list.h

diff --git a/quic/core/quic_flags_list.h b/quic/core/quic_flags_list.h
index 15c2123..8c750b5 100644
--- a/quic/core/quic_flags_list.h
+++ b/quic/core/quic_flags_list.h
@@ -15,8 +15,6 @@
 QUIC_FLAG(FLAGS_quic_restart_flag_quic_testonly_default_false, false)
 // A testonly restart flag that will always default to true.
 QUIC_FLAG(FLAGS_quic_restart_flag_quic_testonly_default_true, true)
-// If true and a QUIC connection is traced, add ssl events to the trace.
-QUIC_FLAG(FLAGS_quic_reloadable_flag_quic_trace_ssl_events, true)
 // If true and connection option B201 is used, check if cwnd limited before aggregation epoch, instead of ack event, in PROBE_UP phase.
 QUIC_FLAG(FLAGS_quic_reloadable_flag_quic_bbr2_check_cwnd_limited_before_aggregation_epoch, true)
 // If true, GFE will explicitly configure its signature algorithm preference.

quic/core/tls_server_handshaker.cc

diff --git a/quic/core/tls_server_handshaker.cc b/quic/core/tls_server_handshaker.cc
index 5756775..7da1f23 100644
--- a/quic/core/tls_server_handshaker.cc
+++ b/quic/core/tls_server_handshaker.cc
@@ -214,9 +214,7 @@
     QUIC_RELOADABLE_FLAG_COUNT(quic_tls_disable_resumption_refactor);
   }
 
-  if (GetQuicReloadableFlag(quic_trace_ssl_events) &&
-      session->connection()->context()->tracer) {
-    QUIC_RELOADABLE_FLAG_COUNT(quic_trace_ssl_events);
+  if (session->connection()->context()->tracer) {
     tls_connection_.EnableInfoCallback();
   }
 }