qcacmn: Remove macro ENABLE_10_4_FW_HDR

Remove all occurrence of ENABLE_10_4_FW_HDR and conserve
any logic change.

CRs-Fixed: 3345419
Change-Id: I37993fd2412a99e605290f5a895b7d8d634b5a69

dp/wifi3.0/dp_wdi_event.c

@@ -1,6 +1,6 @@
 /*
  * Copyright (c) 2017-2021 The Linux Foundation. All rights reserved.
- * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. All rights reserved.
  *
  * Permission to use, copy, modify, and/or distribute this software for
  * any purpose with or without fee is hereby granted, provided that the
@@ -325,4 +325,4 @@ dp_wdi_event_detach(struct dp_pdev *txrx_pdev)
 	qdf_mem_free(txrx_pdev->wdi_event_list);
 	return 0;
 }
-#endif /* CONFIG_WIN */
+#endif