gpio: sx150x: fix implicit assumption module.h is present

This file is currently getting module.h from a global gpio header
and it will faii to build once we remove module.h from that.

However, the driver is controlled with the following Kconfig:

drivers/gpio/Kconfig:config GPIO_SX150X
drivers/gpio/Kconfig:   bool "Semtech SX150x I2C GPIO expander"

and hence the two lines of MODULE_DEVICE_TABLE are no-ops that
can simply be deleted.

Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: linux-gpio@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/gpio/gpio-sx150x.c

@@ -236,7 +236,6 @@ static const struct i2c_device_id sx150x_id[] = {
 	{"sx1502q", 3},
 	{}
 };
-MODULE_DEVICE_TABLE(i2c, sx150x_id);
 
 static const struct of_device_id sx150x_of_match[] = {
 	{ .compatible = "semtech,sx1508q" },
@@ -245,7 +244,6 @@ static const struct of_device_id sx150x_of_match[] = {
 	{ .compatible = "semtech,sx1502q" },
 	{},
 };
-MODULE_DEVICE_TABLE(of, sx150x_of_match);
 
 static s32 sx150x_i2c_write(struct i2c_client *client, u8 reg, u8 val)
 {