Revert "Always format SAS SSDs when resizing."

It seems like my fault to not set Save Pages bug.  Format is just an
official workaround, that is not really needed.

This reverts commit 8b5b0818.

src/freenas/usr/local/sbin/disk_resize

@@ -183,9 +183,9 @@ Number of Logical Blocks: ${lsize}" | camcontrol modepage ${dev} -DELe
 		err=$?
 	fi
 
-	# When resizing SSD format to deallocate the flash.
+	# When resizing SSD to specified size (down?) format to deallocate the flash.
 	ssd=`sg_vpd -p bdc /dev/${dev} 2>/dev/null | grep -c "Non-rotating medium"`
-	if [ ${ssd} -ne 0 ]; then
+	if [ ${ssd} -ne 0 -a -n "${size}" ]; then
 		echo "Formatting device."
 		camcontrol format ${dev} -y
 	fi