staging/rts_pstor: remove braces {} in sd.c (sd_init_power)

fixed below checkpatch warnings.
-WARNING: braces {} are not necessary for single statement blocks
Signed-off-by: Toshiaki Yamane <yamanetoshi@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rts_pstor/sd.c

@@ -2050,42 +2050,37 @@ static int sd_init_power(struct rtsx_chip *chip)
 {
 	int retval;
 
-	if (CHECK_PID(chip, 0x5209)) {
+	if (CHECK_PID(chip, 0x5209))
 		RTSX_WRITE_REG(chip, PWR_GATE_CTRL, LDO3318_PWR_MASK, LDO_OFF);
-	}
 
 	retval = sd_power_off_card3v3(chip);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
-	if (!chip->ft2_fast_mode) {
+	if (!chip->ft2_fast_mode)
 		wait_timeout(250);
-	}
 
 	retval = enable_card_clock(chip, SD_CARD);
-	if (retval != STATUS_SUCCESS) {
+	if (retval != STATUS_SUCCESS)
 		TRACE_RET(chip, STATUS_FAIL);
-	}
 
 	if (chip->asic_code) {
 		retval = sd_pull_ctl_enable(chip);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
 	} else {
 		RTSX_WRITE_REG(chip, FPGA_PULL_CTL, FPGA_SD_PULL_CTL_BIT | 0x20, 0);
 	}
 
 	if (chip->ft2_fast_mode) {
-		if (CHECK_PID(chip, 0x5209)) {
+		if (CHECK_PID(chip, 0x5209))
 			RTSX_WRITE_REG(chip, PWR_GATE_CTRL, LDO3318_PWR_MASK, LDO_ON);
-		}
+
 	} else {
 		retval = card_power_on(chip, SD_CARD);
-		if (retval != STATUS_SUCCESS) {
+		if (retval != STATUS_SUCCESS)
 			TRACE_RET(chip, STATUS_FAIL);
-		}
+
 		wait_timeout(260);
 
 #ifdef SUPPORT_OCP