[simulation] fix tiny issue of infra if (#10402)

examples/platforms/simulation/infra_if.c

@@ -335,4 +335,4 @@ OT_TOOL_WEAK void otPlatInfraIfRecvIcmp6Nd(otInstance         *aInstance,
     exit(1);
 }
 
-#endif // OPENTHREAD_CONFIG_BORDER_ROUTING_ENABLE
+#endif // OPENTHREAD_CONFIG_BORDER_ROUTING_ENABLE && !OPENTHREAD_RADIO

examples/platforms/simulation/system.c

@@ -215,7 +215,7 @@ void otSysDeinit(void)
     platformTrelDeinit();
 #endif
 #if OPENTHREAD_CONFIG_BORDER_ROUTING_ENABLE
-    //    platformInfrIfDeinit();
+    platformInfraIfDeinit();
 #endif
     platformLoggingDeinit();
 }