WIP: remove 'if', assertions, replace with if-arch #2404

Job	Run time
Build melange and add to artifact cache	31s
Build packages (bubblewrap, hello-wolfi)	1m 18s
Build packages (bubblewrap, glibc)	18s
Build packages (bubblewrap, tini)	1m 1s
Build packages (bubblewrap, lzo)	1m 12s
Build packages (bubblewrap, bubblewrap)	1m 9s
Build packages (bubblewrap, gdk-pixbuf)	1m 16s
Build packages (bubblewrap, gitsign)	2m 33s
Build packages (bubblewrap, guac)	3m 27s
Build packages (bubblewrap, mdbook)	3m 40s
Build packages (bubblewrap, s3cmd)	1m 4s
Build packages (bubblewrap, perl-yaml-syck)	1m 6s
Build packages (bubblewrap, ncurses)	2m 3s
Build packages (qemu, hello-wolfi)	1m 56s
Build packages (qemu, glibc)	40s
Build packages (qemu, tini)	1m 36s
Build packages (qemu, lzo)	2m 0s
Build packages (qemu, bubblewrap)	1m 55s
Build packages (qemu, gdk-pixbuf)	1m 47s
Build packages (qemu, gitsign)	3m 9s
Build packages (qemu, guac)	4m 14s
Build packages (qemu, mdbook)	4m 47s
Build packages (qemu, s3cmd)	1m 31s
Build packages (qemu, perl-yaml-syck)	1m 33s
Build packages (qemu, ncurses)	2m 36s
	48m 22s

Provide feedback