Tweak utils.hh, remove unused index sequence
Tweak utils.hh, remove unused index sequence

lenormf/kakoune,lenormf/kakoune,danr/kakoune,jkonecny12/kakoune,Somasis/kakoune,danr/kakoune,flavius/kakoune,ekie/kakoune,jjthrash/kakoune,occivink/kakoune,Somasis/kakoune,mawww/kakoune,jkonecny12/kakoune,lenormf/kakoune,mawww/kakoune,lenormf/kakoune,flavius/kakoune,ekie/kakoune,mawww/kakoune,Somasis/kakoune,Somasis/kakoune,alexherbo2/kakoune,casimir/kakoune,flavius/kakoune,jkonecny12/kakoune,jjthrash/kakoune,flavius/kakoune,mawww/kakoune,jjthrash/kakoune,danr/kakoune,casimir/kakoune,occivink/kakoune,casimir/kakoune,jkonecny12/kakoune,jjthrash/kakoune,ekie/kakoune,alexherbo2/kakoune,alexherbo2/kakoune,occivink/kakoune,occivink/kakoune,casimir/kakoune,danr/kakoune,ekie/kakoune,alexherbo2/kakoune