spi-generic: remove SPI_FLASH_SECTOR_ERASE_TIMEOUT_MS

There was one user of SPI_FLASH_SECTOR_ERASE_TIMEOUT_MS,
southbridge/intel/common/spi.c. Remove the define and encode
the 1 second timeout that it was wanting at the single use site.

Change-Id: If33a1a04bc4d3441e90bf0ca305ddf71c4f8bb88
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37962
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marshall Dawson <marshalldawson3rd@gmail.com>
diff --git a/src/southbridge/intel/common/spi.c b/src/southbridge/intel/common/spi.c
index 63206d0..924fdcc 100644
--- a/src/southbridge/intel/common/spi.c
+++ b/src/southbridge/intel/common/spi.c
@@ -31,6 +31,7 @@
 #include <device/pci.h>
 #include <spi_flash.h>
 #include <spi-generic.h>
+#include <timer.h>
 
 #include "spi.h"
 
@@ -739,7 +740,7 @@
 	u32 start, end, erase_size;
 	int ret;
 	uint16_t hsfc;
-	unsigned int timeout = 1000 * SPI_FLASH_SECTOR_ERASE_TIMEOUT_MS;
+	unsigned int timeout = 1000 * USECS_PER_MSEC; /* 1 second timeout */
 
 	erase_size = flash->sector_size;
 	if (offset % erase_size || len % erase_size) {