aes: remove `zeroize_works` test (#551) #999

Job	Run time
build (1.85.0, thumbv7em-none-eabi)	16s
test (1.85.0)	22s
build (stable, wasm32-unknown-unknown)	15s
build (stable, thumbv7em-none-eabi)	13s
build (1.85.0, wasm32-unknown-unknown)	18s
test (stable)	13s
minimal-versions / minimal-versions	21s
	1m 58s

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