wm9081 driver doesn't work without CONFIG_I2C anyway.
Let's remove #if IS_ENABLED(CONFIG_I2C)
And, this patch adds "depends on I2C" to Kconfig
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
 
 config SND_SOC_WM9081
        tristate
+       depends on I2C
 
 config SND_SOC_WM9090
        tristate
 
        .cache_type = REGCACHE_RBTREE,
 };
 
-#if IS_ENABLED(CONFIG_I2C)
 static int wm9081_i2c_probe(struct i2c_client *i2c,
                            const struct i2c_device_id *id)
 {
        .remove =   wm9081_i2c_remove,
        .id_table = wm9081_i2c_id,
 };
-#endif
 
 module_i2c_driver(wm9081_i2c_driver);