qcacld-3.0: Remove macro HDD_WAKE_LOCK_SCAN_DURATION

Change Ic160dfafcfa015eb42a226304260b1be3dddc6f0 ("qcacld-3.0: cleanup
legacy scan request processing") removed the usage of macro
HDD_WAKE_LOCK_SCAN_DURATION. Since the macros is unused, remove it.

Change-Id: I5f34f09f144115fa217d8c2d3c67268c28f69ecc
CRs-Fixed: 2376945

core/hdd/src/wlan_hdd_scan.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2012-2018 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2012-2019 The Linux Foundation. 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
@@ -51,7 +51,6 @@
 #include "nan_ucfg_api.h"
 
 #define MAX_RATES                       12
-#define HDD_WAKE_LOCK_SCAN_DURATION (5 * 1000) /* in msec */
 
 #define SCAN_DONE_EVENT_BUF_SIZE 4096
 #define RATE_MASK 0x7f