remove unused functions getVariationsOnSlice and get_genotyped_VariationsOnSlice
remove unused functions getVariationsOnSlice and get_genotyped_VariationsOnSlice

Ensembl/ensembl-webcode,Ensembl/ensembl-webcode,Ensembl/ensembl-webcode,Ensembl/ensembl-webcode,Ensembl/ensembl-webcode