Update from https://crrev.com/303153

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 682e06ece2dc01a595d21f9a1d40812be730f7d9..8d6dd860d2e6e845deac8e93fa83ff439f2f77cc 100644
--- a/net/quic/quic_flags.cc
+++ b/net/quic/quic_flags.cc
@@ -36,10 +36,6 @@ bool FLAGS_quic_use_bbr_congestion_control = false;
 // limit.
 bool FLAGS_quic_allow_more_open_streams = false;
 
-// If true, then QUIC connections will only timeout when an alarm fires, never
-// when setting a timeout.
-bool FLAGS_quic_timeouts_only_from_alarms = true;
-
 // If true, then QUIC connections will set both idle and overall timeouts in a
 // single method.
 bool FLAGS_quic_unified_timeouts = true;