ft2232_spi: Revise error message

Reword the message and drop the error string from libftdi. It is
already printed in send_buf().

Change-Id: I125ae9ec0d5487fc26d588a7fd6c54da4ebd0d70
Signed-off-by: Nico Huber <nico.h@gmx.de>
Original-Reviewed-on: https://review.coreboot.org/c/flashrom/+/55697
Original-Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Original-Reviewed-by: Anastasia Klimchuk <aklm@chromium.org>
Original-Reviewed-by: Edward O'Callaghan <quasisec@chromium.org>
Reviewed-on: https://review.coreboot.org/c/flashrom-stable/+/71395
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/ft2232_spi.c b/ft2232_spi.c
index 68e9741..cf4b8b4 100644
--- a/ft2232_spi.c
+++ b/ft2232_spi.c
@@ -176,8 +176,7 @@
 	buf[1] = 0; /* Output byte ignored */
 	buf[2] = 0; /* Pin direction: all inputs */
 	if (send_buf(ftdic, buf, 3)) {
-		msg_perr("Unable to set pins back inputs: (%s)\n",
-		         ftdi_get_error_string(ftdic));
+		msg_perr("Unable to set pins back to inputs.\n");
 		ret = 1;
 	}