Yes, get rid of them. If you do happen to gain some weight again, (you won't), then you'll be forced to buy new clothes and that'll tick you off and you'll get right back on your diet. Besides, after you lose weight and get back into old clothes, it's depressing and the clothes won't look right anyhow. I kept the weight off that I had lost for over 10 years, until menopause hit, and the old clothes were out of fashion anyhow, so I had to buy new. Don't sabotage your hard work by having the old clothes as a standby. You're setting yourself up for failure. Get rid of them. And congrats for being so disciplined to catch yourself before you gained all the weight back.