net/http: re-enable TestTransportServerProtocols

The h2_bundle.go update was done in CL 631035,
and the test now passes.

Fixes #67816.

Change-Id: Icd54c2774a9e2781e7dc9342ae70c3034eb9bab9
Reviewed-on: https://go-review.googlesource.com/c/go/+/631037
Auto-Submit: Damien Neil <dneil@google.com>
Auto-Submit: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Damien Neil <dneil@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>

src/net/http/transport_test.go

@@ -7173,8 +7173,6 @@ func testValidateClientRequestTrailers(t *testing.T, mode testMode) {
 }
 
 func TestTransportServerProtocols(t *testing.T) {
-	t.Skip("https://go.dev/issue/67816: skip test until h2_bundle.go is updated")
-
 	CondSkipHTTP2(t)
 	DefaultTransport.(*Transport).CloseIdleConnections()