Deprecate FLAG_quic_no_unencrypted_fec.

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 9fd8f3f6672e62c04f0662c80ce6a73ba6ae11f3..6474f10f720e097807010666717bf425874b761f 100644
--- a/net/quic/quic_flags.cc
+++ b/net/quic/quic_flags.cc
@@ -68,10 +68,6 @@ bool FLAGS_quic_respect_send_alarm2 = true;
 // If true, Close the connection instead of writing unencrypted stream data.
 bool FLAGS_quic_never_write_unencrypted_data = true;
 
-// If true, clear the FEC group instead of sending it with ENCRYPTION_NONE.
-// Close the connection if we ever try to serialized unencrypted FEC.
-bool FLAGS_quic_no_unencrypted_fec = true;
-
 // If true, reject any incoming QUIC which does not have the FIXD tag.
 bool FLAGS_quic_require_fix = true;