Simplify QuicUtils::GetMaxStreamCount() because it's never used in gQUIC.
gfe-relnote: not used in production. not protected.
PiperOrigin-RevId: 302031491
Change-Id: Ibd41f7fa0393b333e331429577cc475774c61ce3
QUICHE (QUIC, Http/2, Etc) is Google‘s implementation of QUIC and related protocols. It powers Chromium as well as Google’s QUIC servers and some other projects.