[misc] Remove deprecated Maven version requirement
[misc] Remove deprecated Maven version requirement

mjshepherd/phenotips,teyden/phenotips,danielpgross/phenotips,itaiGershtansky/phenotips,DeanWay/phenotips,phenotips/phenotips,tmarathe/phenotips,phenotips/phenotips,mjshepherd/phenotips,tmarathe/phenotips,danielpgross/phenotips,phenotips/phenotips,DeanWay/phenotips,itaiGershtansky/phenotips,phenotips/phenotips,teyden/phenotips,JKereliuk/phenotips,veronikaslc/phenotips,itaiGershtansky/phenotips,alexhenrie/phenotips,tmarathe/phenotips,JKereliuk/phenotips,veronikaslc/phenotips,teyden/phenotips,teyden/phenotips,veronikaslc/phenotips,alexhenrie/phenotips,DeanWay/phenotips,teyden/phenotips,phenotips/phenotips,danielpgross/phenotips,mjshepherd/phenotips,alexhenrie/phenotips,JKereliuk/phenotips