Revert "Bump to ruby 2.5.0"
Revert "Bump to ruby 2.5.0"

gene1wood/chef,nvwls/chef,mwrock/chef,juliandunn/chef,jonlives/chef,juliandunn/chef,martinisoft/chef,tas50/chef-1,chef/chef,juliandunn/chef,juliandunn/chef,higanworks/chef,martinisoft/chef,MsysTechnologiesllc/chef,MsysTechnologiesllc/chef,Tensibai/chef,Tensibai/chef,mattray/chef,jonlives/chef,jonlives/chef,juliandunn/chef,higanworks/chef,Ppjet6/chef,mattray/chef,jonlives/chef,mattray/chef,tas50/chef-1,nathwill/chef,nathwill/chef,gene1wood/chef,jonlives/chef,mwrock/chef,Ppjet6/chef,martinisoft/chef,nathwill/chef,jaymzh/chef,mattray/chef,nvwls/chef,Tensibai/chef,tas50/chef-1,mwrock/chef,nathwill/chef,chef/chef,Ppjet6/chef,jaymzh/chef,mwrock/chef,tomdoherty/chef,chef/chef,higanworks/chef,tas50/chef-1,martinisoft/chef,jonlives/chef,tomdoherty/chef,Ppjet6/chef,jaymzh/chef,Ppjet6/chef,nvwls/chef,gene1wood/chef,mattray/chef,jaymzh/chef,tomdoherty/chef,gene1wood/chef,nvwls/chef,higanworks/chef,nvwls/chef,chef/chef,MsysTechnologiesllc/chef,nathwill/chef,tomdoherty/chef,higanworks/chef,martinisoft/chef,MsysTechnologiesllc/chef,Tensibai/chef,nvwls/chef,Ppjet6/chef,Tensibai/chef,tomdoherty/chef,nathwill/chef