RM: minetest [ppc64el riscv64]: no longer builds on archs

[Gianfranco Costamagna]

From Debian bug, the package is now NBS

 games-finest | 5 | oracular/universe | all
 junior-games-net | 1.32 | oracular/universe | all
 minetest-mod-3d-armor | 0.4.14-2 | oracular/universe | source, all
 minetest-mod-advmarkers-csm | 0.0~git20220709.a6f6170-2 | oracular/universe | source, all
 minetest-mod-basic-materials | 20210130-2 | oracular/universe | source, all
 minetest-mod-basic-robot-csm | 0.0~git20190703.e082c6a-2 | oracular/universe | source, all
 minetest-mod-character-creator | 1.2-1 | oracular/universe | source, all
 minetest-mod-colour-chat-56-csm | 0.0~git20200507.1ed6284-2 | oracular/universe | source, all
 minetest-mod-craftguide | 2.0-1 | oracular/universe | source, all
 minetest-mod-currency | 20210414.1-2 | oracular/universe | source, all
 minetest-mod-ethereal | 20210923-1 | oracular/universe | source, all
 minetest-mod-homedecor | 20210327.1-2 | oracular/universe | source, all
 minetest-mod-infinite-chest | 1.0.1-4 | oracular/universe | source, all
 minetest-mod-ltool | 1.6.1-2 | oracular/universe | source, all
 minetest-mod-lucky-block | 20181017-2 | oracular/universe | source, all
 minetest-mod-maidroid | 0.1.0-2 | oracular/universe | source, all
 minetest-mod-mesecons | 1:1.2.1-2 | oracular/universe | source, all
 minetest-mod-meshport | 0.2.2-2 | oracular/universe | source, all
 minetest-mod-mobs-redo | 20210923-1 | oracular/universe | source, all
 minetest-mod-moreblocks | 2.2.0-1 | oracular/universe | source, all
 minetest-mod-moreores | 2.1.0-1 | oracular/universe | source, all
 minetest-mod-nether | 3.6-1 | oracular/universe | source, all
 minetest-mod-pipeworks | 20210414.1-2 | oracular/universe | source, all
 minetest-mod-protector | 20210923+reallyprotector-2 | oracular/universe | source, all
 minetest-mod-pycraft | 0.22-5 | oracular/universe | source, all
 minetest-mod-quartz | 1.0.0-5 | oracular/universe | source, all
 minetest-mod-throwing | 1.1-2 | oracular/universe | source, all
 minetest-mod-throwing-arrows | 1.1-3 | oracular/universe | source, all
 minetest-mod-unifieddyes | 20210420.1-2 | oracular/universe | source, all
 minetest-mod-unified-inventory | 20180810-2 | oracular/universe | source, all
 minetest-mod-worldedit | 0.6-1.1 | oracular/universe | source, all
 minetest-mod-xdecor | 1.0+dfsg1-2 | oracular/universe | source, all