Don't try to install old GCC packages on Amazon Linux 2
Don't try to install old GCC packages on Amazon Linux 2

This worked until Amazon released 2.0

Signed-off-by: Tim Smith <764ef62106582a09ed09dfa0b6bff7c05fd7d1e4@chef.io>

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