nfc: st21nfca: Remove unneeded linux/miscdevice.h include

drivers/nfc/st21nfca/i2c.c does not use any miscdevice, so this patch
remove this unnecessary inclusion.
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

drivers/nfc/st21nfca/i2c.c

@@ -25,7 +25,6 @@
 #include <linux/of_irq.h>
 #include <linux/of_gpio.h>
 #include <linux/acpi.h>
-#include <linux/miscdevice.h>
 #include <linux/interrupt.h>
 #include <linux/delay.h>
 #include <linux/nfc.h>