qcacmn: Remove __func__ from the DP logs

Logging macros already takes care of adding function name.
Hence, delete the occurrence of __func__.

Change-Id: I44ef5d7f030eba16decb9611f16001c6e9d42b3b
CRs-Fixed: 3492505

dp/wifi3.0/dp_stats.c

@@ -7246,7 +7246,7 @@ void dp_txrx_path_stats(struct dp_soc *soc)
 	uint8_t i;
 
 	if (!soc) {
-		dp_err("%s: Invalid access",  __func__);
+		dp_err("Invalid access");
 		return;
 	}