hwmon: (chipcap2) Drop unnecessary include files

The driver does not perform any locking, does not execute or use any sleep
related functionality, and does not allocate memory. Drop the unnecessary
include files.

Signed-off-by: Guenter Roeck <[e-mail]>

drivers/hwmon/chipcap2.c

···
 	struct completion complete;
 	struct device *hwmon;
 	struct i2c_client *client;
-	struct mutex dev_access_lock; /* device access lock */
 	struct regulator *regulator;
 	const char *name;
 	int irq_ready;
···
 {
 	struct cc2_data *data = dev_get_drvdata(dev);
 
-	guard(mutex)(&data->dev_access_lock);
-
 	switch (type) {
 	case hwmon_temp:
 		return cc2_measurement(data, type, val);
···
 
 	if (val < 0 || val > CC2_RH_MAX)
 		return -EINVAL;
-
-	guard(mutex)(&data->dev_access_lock);
 
 	switch (attr) {
 	case hwmon_humidity_min:
···
 		return -ENOMEM;
 
 	i2c_set_clientdata(client, data);
-
-	mutex_init(&data->dev_access_lock);
 
 	data->client = client;