staging: rts5139: remove unused card_power_off

Signed-off-by: Oleksij Rempel <bug-track@fisher-privat.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rts5139/rts51x_card.c

@@ -855,17 +855,6 @@ int card_power_on(struct rts51x_chip *chip, u8 card)
 	return STATUS_SUCCESS;
 }
 
-int card_power_off(struct rts51x_chip *chip, u8 card)
-{
-	u8 mask, val;
-
-	mask = POWER_MASK;
-	val = POWER_OFF;
-	RTS51X_WRITE_REG(chip, CARD_PWR_CTL, mask, val);
-
-	return STATUS_SUCCESS;
-}
-
 int monitor_card_cd(struct rts51x_chip *chip, u8 card)
 {
 	int retval;

drivers/staging/rts5139/rts51x_card.h

@@ -758,7 +758,6 @@ void trans_dma_enable(enum dma_data_direction dir, struct rts51x_chip *chip,
 		      u32 byte_cnt, u8 pack_size);
 int enable_card_clock(struct rts51x_chip *chip, u8 card);
 int card_power_on(struct rts51x_chip *chip, u8 card);
-int card_power_off(struct rts51x_chip *chip, u8 card);
 int toggle_gpio(struct rts51x_chip *chip, u8 gpio);
 int turn_on_led(struct rts51x_chip *chip, u8 gpio);
 int turn_off_led(struct rts51x_chip *chip, u8 gpio);