build fix: ft2232

fix build with-ftd2xx-lib

Change-Id: I4a9b5d204c29b7a0714a59494b2b5f959c73f99b
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Reviewed-on: http://openocd.zylin.com/1359
Tested-by: jenkins
Reviewed-by: Freddie Chopin <freddie.chopin@gmail.com>

src/jtag/drivers/ft2232.c

@@ -3141,9 +3141,8 @@ static void flossjtag_blink(void)
 static int ft2232_quit(void)
 {
 #if BUILD_FT2232_FTD2XX == 1
-	FT_STATUS status;
 
-	status = FT_Close(ftdih);
+	FT_Close(ftdih);
 #elif BUILD_FT2232_LIBFTDI == 1
 	ftdi_usb_close(&ftdic);