It may appear like it's still there but if you look closely, you'll see that that same 29.9GB space is now described as Unallocated Space, not as a partition.
O nwere ike iyi ka ọ ka dị ebe ahụ ma ọ bụrụ na ị lee anya, ị ga-ahụ na a na-akọwa ebe ahụ 29.9 GB dị ka Unallocated Space , ọ bụghị dịka nkewa.