[core] Remove stale includes from application.cpp

socket.h is unused after #15931 moved the host wake mechanism to
wake.cpp. lwip_fast_select.h is already included via application.h
under the same guard.

esphome/core/application.cpp

@@ -12,9 +12,6 @@
 #include <esp_ota_ops.h>
 #include <esp_bootloader_desc.h>
 #endif
-#ifdef USE_LWIP_FAST_SELECT
-#include "esphome/core/lwip_fast_select.h"
-#endif  // USE_LWIP_FAST_SELECT
 #include "esphome/core/version.h"
 #include "esphome/core/hal.h"
 #include <algorithm>
@@ -24,10 +21,6 @@
 #include "esphome/components/status_led/status_led.h"
 #endif
 
-#if (defined(USE_ESP8266) || defined(USE_RP2040)) && defined(USE_SOCKET_IMPL_LWIP_TCP)
-#include "esphome/components/socket/socket.h"
-#endif
-
 namespace esphome {
 
 static const char *const TAG = "app";