To clear this up a bit, you are most likely referring to a mutation in the ABCC11 gene often associated with and common in east asian demographics. The gene mutation causes earwax to be dry instead of sticky and seems to inhibit production of certain proteins in the sweat glands:

"To learn the reason behind why this gene affects body odor, the origin of body odor itself will also have to be examined. To learn why, it must be noted that sweat itself is odorless. Body odor comes from the apocrine glands in areas such as the armpits and genital regions, and is caused by bacteria feeding on proteins produced by the apocrine sweat glands. However, with the gene mutation in ABCC11 gene, these proteins are not made, causing sweat to remain odorless."