Kill asmjs-unknown-emscripten #4313

Job	Run time
cargo-deny	18s
check	21s
fmt	25s
clippy (macos-latest)	31s
clippy (ubuntu-latest)	24s
generate-matrix	32s
clippy (windows-latest)	40s
shellcheck	7s
test (macos-latest)	3m 29s
test (ubuntu-latest)	3m 20s
test (windows-latest)	5m 17s
bisect	6m 51s
foreign	4m 58s
podman	4m 13s
target (${{ matrix.pretty }},${{ matrix.os }})	0s
remote	4m 6s
docker-in-docker	6m 4s
publish	0s
conclusion	1s
Coverage	14s
	41m 51s

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