I2C: Don't check return value for a void function

Don't check return value for a void function
Signed-off-by: Tony Lindgren <tony@atomide.com>

drivers/i2c/chips/menelaus.c

@@ -940,8 +940,7 @@ static int __init menelaus_init(void)
 
 static void __exit menelaus_exit(void)
 {
-	if (i2c_del_driver(&menelaus_i2c_driver) < 0)
-		pr_err("driver remove failed\n");
+	i2c_del_driver(&menelaus_i2c_driver);
 
 	/* FIXME: Shutdown menelaus parts that can be shut down */
 }

drivers/i2c/chips/tlv320aic23.c

@@ -655,8 +655,7 @@ static void __exit aic23_exit(void)
 	int res;
 
 	aic23_power_down();
-	if ((res = i2c_del_driver(&aic23_driver)))
-		printk("aic23 i2c: Driver remove failed, module not removed.\n");
+	i2c_del_driver(&aic23_driver);
 
 	platform_device_unregister(&audio_i2c_device);
 	platform_driver_unregister(&audio_i2c_driver);

drivers/i2c/chips/twl4030_core.c

@@ -891,9 +891,7 @@ static int __init twl4030_init(void)
 
 static void __exit twl4030_exit(void)
 {
-	if (i2c_del_driver(&twl4030_driver))
-		printk(KERN_ERR
-			"TWL4030: Driver remove failed, module not removed\n");
+	i2c_del_driver(&twl4030_driver);
 	twl_irq_used = FREE;
 }