Baby robin with broken feather

I came across a baby robin on a country lane and it had a broken feather. It wasn't a blood feather I think as the shaft was white but saying that I only know about blood feathers from googling after. I removed the broken feather from the robin and not sure if this was the right thing to do. On the spur of the moment and without reference it was a judgement call but for future reference would like to know if I should just have left it.