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

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

drivers/staging/rts_pstor/sd.c

@@ -622,41 +622,40 @@ static void sd_choose_proper_clock(struct rtsx_chip *chip)
 	struct sd_info *sd_card = &(chip->sd_card);
 
 	if (CHK_SD_SDR104(sd_card)) {
-		if (chip->asic_code) {
+		if (chip->asic_code)
 			sd_card->sd_clock = chip->asic_sd_sdr104_clk;
-		} else {
+		else
 			sd_card->sd_clock = chip->fpga_sd_sdr104_clk;
-		}
+
 	} else if (CHK_SD_DDR50(sd_card)) {
-		if (chip->asic_code) {
+		if (chip->asic_code)
 			sd_card->sd_clock = chip->asic_sd_ddr50_clk;
-		} else {
+		else
 			sd_card->sd_clock = chip->fpga_sd_ddr50_clk;
-		}
+
 	} else if (CHK_SD_SDR50(sd_card)) {
-		if (chip->asic_code) {
+		if (chip->asic_code)
 			sd_card->sd_clock = chip->asic_sd_sdr50_clk;
-		} else {
+		else
 			sd_card->sd_clock = chip->fpga_sd_sdr50_clk;
-		}
+
 	} else if (CHK_SD_HS(sd_card)) {
-		if (chip->asic_code) {
+		if (chip->asic_code)
 			sd_card->sd_clock = chip->asic_sd_hs_clk;
-		} else {
+		else
 			sd_card->sd_clock = chip->fpga_sd_hs_clk;
-		}
+
 	} else if (CHK_MMC_52M(sd_card) || CHK_MMC_DDR52(sd_card)) {
-		if (chip->asic_code) {
+		if (chip->asic_code)
 			sd_card->sd_clock = chip->asic_mmc_52m_clk;
-		} else {
+		else
 			sd_card->sd_clock = chip->fpga_mmc_52m_clk;
-		}
+
 	} else if (CHK_MMC_26M(sd_card)) {
-		if (chip->asic_code) {
+		if (chip->asic_code)
 			sd_card->sd_clock = 48;
-		} else {
+		else
 			sd_card->sd_clock = CLK_50;
-		}
 	}
 }