fix: revert prematurely merged PR #31 (#37)

Author: wong-nw

R/convert_human_gene_list.R

@@ -12,7 +12,6 @@ convert_human_gene_list <- function(genes) {
   # data variables must be initialized to silence the R CMD check note:
   #    'no visible binding for global variable'
   gns <- NULL
-  gns <- genes
 
   # TODO: make this function generic enough to convert any genome to any other
   egs <- AnnotationDbi::mapIds(