Jonathan Rosser f70d823db3 Remove references to unsupported operating systems
All references to Gentoo, SUSE, Debian stretch and Centos-7  are removed.
Conditional tasks, ternary operators and variables are simplified where possible
OS specific variables files are generalised where possible

Change-Id: I68735b995fe1bce23edb8c092f2199fdde137acd
2021-03-10 12:16:40 +00:00
..
2020-07-07 01:19:04 -04:00