MAINTAINERS: N900: Remove isp1704_charger.h record

Update MAINTAINERS to reflect that isp1704_charger.h file was removed.

Cc: Pavel Machek <pavel@ucw.cz>
Cc: linux-pm@vger.kernel.org
Fixes: f5d782d46a ("power: supply: isp1704: switch to gpiod API")
Signed-off-by: Denis Efremov <efremov@linux.com>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>

MAINTAINERS

@@ -11400,7 +11400,6 @@ NOKIA N900 POWER SUPPLY DRIVERS
 R:	Pali Rohár <pali.rohar@gmail.com>
 F:	include/linux/power/bq2415x_charger.h
 F:	include/linux/power/bq27xxx_battery.h
-F:	include/linux/power/isp1704_charger.h
 F:	drivers/power/supply/bq2415x_charger.c
 F:	drivers/power/supply/bq27xxx_battery.c
 F:	drivers/power/supply/bq27xxx_battery_i2c.c