rtc: pcf85363: remove unused struct pcf85363 member

pcf85363->dev is unused, remove it.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

drivers/rtc/rtc-pcf85363.c

@@ -115,7 +115,6 @@
 static struct i2c_driver pcf85363_driver;
 
 struct pcf85363 {
-	struct device		*dev;
 	struct rtc_device	*rtc;
 	struct regmap		*regmap;
 };
@@ -400,10 +399,9 @@ static int pcf85363_probe(struct i2c_client *client,
 		return PTR_ERR(pcf85363->regmap);
 	}
 
-	pcf85363->dev = &client->dev;
 	i2c_set_clientdata(client, pcf85363);
 
-	pcf85363->rtc = devm_rtc_allocate_device(pcf85363->dev);
+	pcf85363->rtc = devm_rtc_allocate_device(&client->dev);
 	if (IS_ERR(pcf85363->rtc))
 		return PTR_ERR(pcf85363->rtc);
 
@@ -413,7 +411,7 @@ static int pcf85363_probe(struct i2c_client *client,
 		regmap_write(pcf85363->regmap, CTRL_FLAGS, 0);
 		regmap_update_bits(pcf85363->regmap, CTRL_PIN_IO,
 				   PIN_IO_INTA_OUT, PIN_IO_INTAPM);
-		ret = devm_request_threaded_irq(pcf85363->dev, client->irq,
+		ret = devm_request_threaded_irq(&client->dev, client->irq,
 						NULL, pcf85363_rtc_handle_irq,
 						IRQF_TRIGGER_LOW | IRQF_ONESHOT,
 						"pcf85363", client);