Deprecate FLAG_quic_use_new_idle_timeout

net/quic/quic_flags.cc

Index: net/quic/quic_flags.cc
diff --git a/net/quic/quic_flags.cc b/net/quic/quic_flags.cc
index 68b5f647283bd9f6acd4fba5f96efb0dd2b3fff0..4ed23c41ad4756907c973fce6a4b11ff62780328 100644
--- a/net/quic/quic_flags.cc
+++ b/net/quic/quic_flags.cc
@@ -62,10 +62,6 @@ bool FLAGS_quic_measure_headers_hol_blocking_time = true;
 // Disable QUIC's userspace pacing.
 bool FLAGS_quic_disable_pacing = false;
 
-// If true, QUIC connections will timeout when packets are not being recieved,
-// even if they are being sent.
-bool FLAGS_quic_use_new_idle_timeout = true;
-
 // If true, don't send QUIC packets if the send alarm is set.
 bool FLAGS_quic_respect_send_alarm2 = true;