md5

Remove `crypto` tags (#722) #1137

Job	Run time
minimal-versions / minimal-versions	47s
set-msrv / set-msrv	6s
test (stable)	39s
build (1.85.0, thumbv7em-none-eabi)	29s
test (1.85.0)	42s
build (stable, thumbv7em-none-eabi)	26s
build (1.85.0, wasm32-unknown-unknown)	24s
build (stable, wasm32-unknown-unknown)	31s
build (stable, loongarch64-unknown-linux-gnu)	24s
build (1.85.0, loongarch64-unknown-linux-gnu)	24s
	4m 52s

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