I did the same. One afternoon I cleaned out the fridge. Food that was still 'good'. All gone. Never bought it again even though I was highly tempted at times and caved once. I knew I was wasting money by throwing away perfectly good but unhealthy food, but it was hurting my goals.
Self-control fluctuates with tiredness level and mood. You want to build systems to protect yourself when those things dip and you're not thinking properly, by adding some artificial friction.
