drivers/leds/leds-pca9633.c: remove unused 'adapter' variable

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Cc: Peter Meerwald <p.meerwald@bct-electronic.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/leds/leds-pca9633.c b/drivers/leds/leds-pca9633.c
index 80cb61a..d8926fd 100644
--- a/drivers/leds/leds-pca9633.c
+++ b/drivers/leds/leds-pca9633.c
@@ -96,11 +96,9 @@
 					const struct i2c_device_id *id)
 {
 	struct pca9633_led *pca9633;
-	struct i2c_adapter *adapter;
 	struct led_platform_data *pdata;
 	int i, err;
 
-	adapter = to_i2c_adapter(client->dev.parent);
 	pdata = client->dev.platform_data;
 
 	if (pdata) {