Update peerconnection example to not use Win32Socket

Followup to https://webrtc-review.googlesource.com/c/src/+/223540

Bug: webrtc:6424. webrtc:13065
Change-Id: I85ccfa9e6997a24464d240b0e9b3f1ac90112e8c
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/224541
Reviewed-by: Henrik Andreassson <henrika@webrtc.org>
Reviewed-by: Tommi <tommi@webrtc.org>
Commit-Queue: Niels Moller <nisse@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#35423}
diff --git a/examples/peerconnection/client/peer_connection_client.cc b/examples/peerconnection/client/peer_connection_client.cc
index b76b925..e4d2df4 100644
--- a/examples/peerconnection/client/peer_connection_client.cc
+++ b/examples/peerconnection/client/peer_connection_client.cc
@@ -15,10 +15,6 @@
 #include "rtc_base/logging.h"
 #include "rtc_base/net_helpers.h"
 
-#ifdef WIN32
-#include "rtc_base/win32_socket_server.h"
-#endif
-
 namespace {
 
 // This is our magical hangup signal.
@@ -27,17 +23,9 @@
 const int kReconnectDelay = 2000;
 
 rtc::Socket* CreateClientSocket(int family) {
-#ifdef WIN32
-  rtc::Win32Socket* sock = new rtc::Win32Socket();
-  sock->CreateT(family, SOCK_STREAM);
-  return sock;
-#elif defined(WEBRTC_POSIX)
   rtc::Thread* thread = rtc::Thread::Current();
   RTC_DCHECK(thread != NULL);
   return thread->socketserver()->CreateSocket(family, SOCK_STREAM);
-#else
-#error Platform not supported.
-#endif
 }
 
 }  // namespace