ASoC: codecs: wcd937x: Remove unused of_gpio.h

of_gpio.h is deprecated and subject to remove. The drivers in question
don't use it, simply remove the unused header.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20241031103302.2450830-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

Author: andy-shev

sound/soc/codecs/wcd937x.c

@@ -7,7 +7,6 @@
 #include <linux/gpio/consumer.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
-#include <linux/of_gpio.h>
 #include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>