qcacld-3.0: clean up the WLAN_FEATURE_MBSSID flag (phase 1)

WLAN_FEATURE_MBSSID flag is originally added to support MBSSID,
specifically for the MOBILE ROUTER build, and is now enabled for all
builds, there is no longer needed to have a separate feature flag,
so that removing it.

This commit cleans up the following modules - cds/mac/sap/sme.

Change-Id: I79ad9767b7945af0c567b6294ac07e7697898e9e
CRs-fixed: 958154
diff --git a/core/sap/src/sap_ch_select.c b/core/sap/src/sap_ch_select.c
index 9e7aabc..b22f6cf 100644
--- a/core/sap/src/sap_ch_select.c
+++ b/core/sap/src/sap_ch_select.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2012-2015 The Linux Foundation. All rights reserved.
+ * Copyright (c) 2012-2016 The Linux Foundation. All rights reserved.
  *
  * Previously licensed under the ISC license by Qualcomm Atheros, Inc.
  *
@@ -434,8 +434,7 @@
 	}
 
 	/* Try to find unsafe channel */
-#if defined(FEATURE_WLAN_STA_AP_MODE_DFS_DISABLE) || \
-	defined(WLAN_FEATURE_MBSSID)
+#if defined(FEATURE_WLAN_STA_AP_MODE_DFS_DISABLE)
 	for (i = 0; i < NUM_20MHZ_RF_CHANNELS; i++) {
 		if (pSapCtx->dfs_ch_disable == true) {
 			if (CDS_IS_DFS_CH(safe_channels[i].channelNumber)) {
@@ -501,16 +500,8 @@
     NULL
    ============================================================================*/
 
-void sap_cleanup_channel_list(
-#ifdef WLAN_FEATURE_MBSSID
-	void *p_cds_gctx
-#else
-	void
-#endif
-	) {
-#ifndef WLAN_FEATURE_MBSSID
-	void *p_cds_gctx = cds_get_global_context();
-#endif
+void sap_cleanup_channel_list(void *p_cds_gctx)
+{
 	ptSapContext pSapCtx;
 
 	CDF_TRACE(CDF_MODULE_ID_SAP, CDF_TRACE_LEVEL_INFO,
@@ -647,7 +638,7 @@
 
 	pChans = pMac->scan.base_channels.channelList;
 
-#if defined(FEATURE_WLAN_STA_AP_MODE_DFS_DISABLE) || defined(WLAN_FEATURE_MBSSID)
+#if defined(FEATURE_WLAN_STA_AP_MODE_DFS_DISABLE)
 	if (pSapCtx->dfs_ch_disable == true)
 		include_dfs_ch = false;
 #endif