Fix failed to sync device when using dynamic setupPIN (#35061)

diff --git a/examples/fabric-admin/device_manager/DeviceManager.cpp b/examples/fabric-admin/device_manager/DeviceManager.cpp
index 56f8591..849d557 100644
--- a/examples/fabric-admin/device_manager/DeviceManager.cpp
+++ b/examples/fabric-admin/device_manager/DeviceManager.cpp
@@ -144,7 +144,6 @@
     commandBuilder.Add("pairing open-commissioning-window ");
     commandBuilder.AddFormat("%lu %d %d %d %d %d", mRemoteBridgeNodeId, remoteEndpointId, kEnhancedCommissioningMethod,
                              kWindowTimeout, kIteration, discriminator);
-    commandBuilder.Add(" --setup-pin 20202021");
 
     PushCommand(commandBuilder.c_str());
 }