Remove no-op code in tlsserverhandshaker, not flag protected This code was added in cl/297650164 to simulate pending behavior in BoringSSL, which landed in https://boringssl-review.googlesource.com/c/boringssl/+/40127. PiperOrigin-RevId: 314920425 Change-Id: Id41e82d474711c8f87e67b5563f7f1aea169e9ee