Remove QuicDispatcher::set_new_session_allowed_per_event_loop().

This is a private method, so whoever has access to it (like QuicDispatcherPeer)
has access to the private member new_session_allowed_per_event_loop_ directly.

gfe-relnote: n/a, no fuctional change.
PiperOrigin-RevId: 279743685
Change-Id: I5a744209601cf5cf1857d29ac868e8ffd9a436ab

quic/core/quic_dispatcher.h

diff --git a/quic/core/quic_dispatcher.h b/quic/core/quic_dispatcher.h
index e1279fe..7dbdea6 100644
--- a/quic/core/quic_dispatcher.h
+++ b/quic/core/quic_dispatcher.h
@@ -314,11 +314,6 @@
   // connection ID according to the packet's size.
   void MaybeResetPacketsWithNoVersion(const ReceivedPacketInfo& packet_info);
 
-  void set_new_sessions_allowed_per_event_loop(
-      int16_t new_sessions_allowed_per_event_loop) {
-    new_sessions_allowed_per_event_loop_ = new_sessions_allowed_per_event_loop;
-  }
-
   const QuicConfig* config_;
 
   const QuicCryptoServerConfig* crypto_config_;

quic/test_tools/quic_dispatcher_peer.cc

diff --git a/quic/test_tools/quic_dispatcher_peer.cc b/quic/test_tools/quic_dispatcher_peer.cc
index 12c2b94..b460165 100644
--- a/quic/test_tools/quic_dispatcher_peer.cc
+++ b/quic/test_tools/quic_dispatcher_peer.cc
@@ -83,8 +83,7 @@
 void QuicDispatcherPeer::set_new_sessions_allowed_per_event_loop(
     QuicDispatcher* dispatcher,
     size_t num_session_allowed) {
-  return dispatcher->set_new_sessions_allowed_per_event_loop(
-      num_session_allowed);
+  dispatcher->new_sessions_allowed_per_event_loop_ = num_session_allowed;
 }
 
 // static