qcacld-3.0: Remove obsolete LIM scan result prototypes

The following LIM scan result APIs have prototypes but no
corresponding implementations, so remove them:
- lim_copy_scan_result()
- lim_restore_pre_scan_state()
- lim_scan_hash_function()

Change-Id: Ie5b3e24019e29e984a5893afaf1b24fcc5ce6d51
CRs-Fixed: 2376127

core/mac/src/pe/lim/lim_scan_result_utils.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2012, 2014-2018 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2012, 2014-2019 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
@@ -32,9 +32,6 @@
 #include "lim_types.h"
 
 /* Scan result hash related functions */
-uint8_t lim_scan_hash_function(tSirMacAddr);
-void lim_restore_pre_scan_state(struct mac_context *);
-void lim_copy_scan_result(struct mac_context *, uint8_t *);
 void lim_collect_bss_description(struct mac_context *mac,
 			    tSirBssDescription *pBssDescr,
 			    tpSirProbeRespBeacon pBPR,