Remove unused Diff::posA field
Remove unused Diff::posA field

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