p384

p521: remove unneeded allow(dead_code) attribute #1775

Job	Run time
build (1.65.0, thumbv7em-none-eabi)	5m 27s
cross (armv7-unknown-linux-gnueabihf, 1.65.0)	5m 26s
build (1.65.0, wasm32-unknown-unknown)	5m 22s
test (i686-unknown-linux-gnu, 1.65.0, sudo apt update && sudo apt install gcc-multilib)	9m 28s
doc	24s
cross (armv7-unknown-linux-gnueabihf, stable)	3m 13s
build (stable, thumbv7em-none-eabi)	1m 2s
test (i686-unknown-linux-gnu, stable, sudo apt update && sudo apt install gcc-multilib)	1m 51s
cross (aarch64-unknown-linux-gnu, 1.65.0)	4m 49s
test (x86_64-unknown-linux-gnu, 1.65.0)	4m 30s
build (stable, wasm32-unknown-unknown)	1m 13s
cross (aarch64-unknown-linux-gnu, stable)	2m 2s
test (x86_64-unknown-linux-gnu, stable)	2m 7s
cross (powerpc-unknown-linux-gnu, 1.65.0)	4m 39s
cross (powerpc-unknown-linux-gnu, stable)	1m 33s
	53m 6s

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