Simplify QuicUtils::GetMaxStreamCount() because it's never used in gQUIC.

gfe-relnote: not used in production. not protected.
PiperOrigin-RevId: 302031491
Change-Id: Ibd41f7fa0393b333e331429577cc475774c61ce3

quic/core/quic_utils.h

diff --git a/quic/core/quic_utils.h b/quic/core/quic_utils.h
index c143154..eec9a5f 100644
--- a/quic/core/quic_utils.h
+++ b/quic/core/quic_utils.h
@@ -219,8 +219,7 @@
   // Get the maximum value for a V99/IETF QUIC stream count. If a count
   // exceeds this value, it will result in a stream ID that exceeds the
   // implementation limit on stream ID size.
-  static QuicStreamCount GetMaxStreamCount(bool unidirectional,
-                                           Perspective perspective);
+  static QuicStreamCount GetMaxStreamCount();
 };
 
 template <typename Mask>