qcacmn: set logging thread priority to default

Currently logging thread priority is equal to cds
thread which can cause scheduling issues to other
priority tasks when there are too many wlan debug
messages.
Set logging thread priority to default value.

Change-Id: I578ac062a69a34f7f4b7a2450e59e3f934704934
CRs-Fixed: 2047462

utils/logging/src/wlan_logging_sock_svc.c

@@ -735,8 +735,6 @@ static int wlan_logging_thread(void *Arg)
 	int ret = 0;
 	unsigned long flags;
 
-	set_user_nice(current, -2);
-
 	while (!gwlan_logging.exit) {
 		ret_wait_status =
 			wait_event_interruptible(gwlan_logging.wait_queue,