Function debruijn::filter::remove_censored_exts

pub fn remove_censored_exts<K: Kmer, D>(
    stranded: bool, 
    valid_kmers: &mut Vec<(K, (Exts, D))>
)

Remove extensions in valid_kmers that point to censored kmers. Use this method in a non-partitioned context when valid_kmers includes all kmers that will ultimately be included in the graph.