remove useless return statement

Get rid of:
void foo() {
...
	return;
}

ip/iptuntap.c

@@ -373,7 +373,6 @@ next:
 	}
 
 	globfree(&globbuf);
-	return;
 }
 
 

tc/tc_class.c

@@ -52,7 +52,6 @@ static void usage(void)
 	fprintf(stderr, "Where:\n");
 	fprintf(stderr, "QDISC_KIND := { prio | cbq | etc. }\n");
 	fprintf(stderr, "OPTIONS := ... try tc class add <desired QDISC_KIND> help\n");
-	return;
 }
 
 static int tc_class_modify(int cmd, unsigned int flags, int argc, char **argv)

tc/tc_stab.c

@@ -40,7 +40,6 @@ static void stab_help(void)
 		"   linklayer : adapting to a linklayer e.g. atm\n"
 		"Example: ... stab overhead 20 linklayer atm\n");
 
-	return;
 }
 
 int check_size_table_opts(struct tc_sizespec *s)