community/[various]: dont set arch in split function

community/arpack/APKBUILD

community/bareos-webui/APKBUILD

community/cfengine/APKBUILD

community/chicken/APKBUILD

community/cmus/APKBUILD

community/dnscrypt-proxy/APKBUILD

community/docker/APKBUILD

community/firejail/APKBUILD

community/hub/APKBUILD

community/icinga2/APKBUILD

community/icingaweb2/APKBUILD

community/java-jffi/APKBUILD

community/java-lz4/APKBUILD

community/java-snappy/APKBUILD

community/knot/APKBUILD

community/lua-compat53/APKBUILD

community/lua-lpeg/APKBUILD

community/lua-lunix/APKBUILD

community/minetest/APKBUILD

community/mpv/APKBUILD