diff --git a/http2/transport.go b/http2/transport.go
index b0d482f..4515b22 100644
--- a/http2/transport.go
+++ b/http2/transport.go
@@ -291,8 +291,7 @@
 // HTTP/2 server.
 type ClientConn struct {
 	t             *Transport
-	tconn         net.Conn // usually *tls.Conn, except specialized impls
-	tconnClosed   bool
+	tconn         net.Conn             // usually *tls.Conn, except specialized impls
 	tlsState      *tls.ConnectionState // nil only for specialized impls
 	reused        uint32               // whether conn is being reused; atomic
 	singleUse     bool                 // whether being used for a single http.Request