Delete remaining Mojang cruft #81

Job	Run time
Build Debug / flatpak	21m 14s
Build Debug / build (ubuntu-20.04, 5, linux, 5.12.8, qtnetworkauth)	9m 36s
Build Debug / Nix (x86_64-linux)	17m 32s
Build Debug / build (ubuntu-20.04, 6, linux, 6.2.4, qt5compat qtimageformats qtnetworkauth)	13m 49s
Build Debug / build (windows-2022, Windows-MinGW-w64, clang64, amd64_x86)	18m 12s
Build Debug / Nix (x86_64-darwin)	14m 26s
Build Debug / build (windows-2022, Windows-MSVC, x64, amd64, 6, windows, 6.7.3, qt5compat qtimageformats qtnetw...	18m 6s
Build Debug / Nix (aarch64-darwin)	9m 22s
Build Debug / build (windows-2022, Windows-MSVC-arm64, arm64, amd64_arm64, 6, windows, win64_msvc2019_arm64, 6....	20m 37s
Build Debug / build (macos-14, macOS, 11, 6, mac, 6.7.3, qt5compat qtimageformats qtnetworkauth)	16m 33s
Build Debug / build (macos-14, macOS-Legacy, 10.13, 5, mac, 5.15.2, qtnetworkauth)	12m 20s
	2h 51m 47s

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