Remove FEC related connection options and update FEC related comment in code base.

net/tools/quic/quic_server_session_base.h

Index: net/tools/quic/quic_server_session_base.h
diff --git a/net/tools/quic/quic_server_session_base.h b/net/tools/quic/quic_server_session_base.h
index 151cff56c680071cbcce1714e73dc73a5672ffb0..a93fd9c44f77f1691e150e38c61862583bc9aeaa 100644
--- a/net/tools/quic/quic_server_session_base.h
+++ b/net/tools/quic/quic_server_session_base.h
@@ -79,7 +79,8 @@ class QuicServerSessionBase : public QuicSpdySession {
     return crypto_stream_.get();
   }
 
-  // Override base class to process FEC config received from client.
+  // Override base class to process bandwidth related config received from
+  // client.
   void OnConfigNegotiated() override;
 
   void set_serving_region(const std::string& serving_region) {