wlan: Removing initialization to 0/NULL of static/global variables

Change-Id: I7411e8b298bc9c78397137037ae2df427ce4e14b
CR-Fixed: N/A
diff --git a/CORE/SME/src/csr/csrApiScan.c b/CORE/SME/src/csr/csrApiScan.c
index cef62d3..9e1bf83 100644
--- a/CORE/SME/src/csr/csrApiScan.c
+++ b/CORE/SME/src/csr/csrApiScan.c
@@ -50,7 +50,7 @@
 
 #ifdef CSR_VALIDATE_LIST
 tDblLinkList *g_pchannelPowerInfoList24 = NULL, * g_pchannelPowerInfoList5 = NULL;
-tpAniSirGlobal g_pMac = NULL;
+tpAniSirGlobal g_pMac;
 #endif
 
 /* Purpose of HIDDEN_TIMER