mfd: Remove unused max-current lm3533 function

The max-current attributes of the subdrivers have been dropped so
remove the no longer used lm3533_ctrlbank_get_max_current function.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

drivers/mfd/lm3533-ctrlbank.c

@@ -113,7 +113,6 @@ lm3533_ctrlbank_get(brightness, BRIGHTNESS);
  *   31 - 29.8 mA
  */
 lm3533_ctrlbank_set(max_current, MAX_CURRENT);
-lm3533_ctrlbank_get(max_current, MAX_CURRENT);
 
 /*
  * PWM-input control mask:

include/linux/mfd/lm3533.h

@@ -92,8 +92,6 @@ extern int lm3533_ctrlbank_disable(struct lm3533_ctrlbank *cb);
 extern int lm3533_ctrlbank_set_brightness(struct lm3533_ctrlbank *cb, u8 val);
 extern int lm3533_ctrlbank_get_brightness(struct lm3533_ctrlbank *cb, u8 *val);
 extern int lm3533_ctrlbank_set_max_current(struct lm3533_ctrlbank *cb, u8 val);
-extern int lm3533_ctrlbank_get_max_current(struct lm3533_ctrlbank *cb,
-								u8 *val);
 extern int lm3533_ctrlbank_set_pwm(struct lm3533_ctrlbank *cb, u8 val);
 extern int lm3533_ctrlbank_get_pwm(struct lm3533_ctrlbank *cb, u8 *val);