platform/chrome: cros_hps_i2c: make remove callback return void

Commit ed5c2f5fd1 ("i2c: Make remove callback return void") changed
the return type of the 'remove' callback to void, but this driver was
originally written before that change landed. Update the remove callback
to match.

Fixes: 5f9952548d ("platform/chrome: add a driver for HPS")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Dan Callaghan <dcallagh@chromium.org>
Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org>
Link: https://lore.kernel.org/r/20221018235237.2274969-1-dcallagh@chromium.org

drivers/platform/chrome/cros_hps_i2c.c

@@ -95,7 +95,7 @@ static int hps_i2c_probe(struct i2c_client *client)
 	return 0;
 }
 
-static int hps_i2c_remove(struct i2c_client *client)
+static void hps_i2c_remove(struct i2c_client *client)
 {
 	struct hps_drvdata *hps = i2c_get_clientdata(client);
 
@@ -107,8 +107,6 @@ static int hps_i2c_remove(struct i2c_client *client)
 	 * (i.e. powered on).
 	 */
 	hps_set_power(hps, true);
-
-	return 0;
 }
 
 static int hps_suspend(struct device *dev)