Clean rh7 d8 support

WIP for comment only
To make sure it's at the end of the file:

```puppet
augeas { "setenv-local.sh_${name}":
        lens    => 'Shellvars.lns',
        incl    => "${distro_confdir}/tomcat-${name}",
        changes => 
        [
         "rm .source[.='${catalina_base}/bin/setenv-local.sh']",
          "set .source[.='${catalina_base}/bin/setenv-local.sh'] '${catalina_base}/bin/setenv-local.sh'",
        ]
}
```

Beware though that if you do that for more than one entry, they will fight to get the last place, and this might not converge.