sha2

sha2: remove RISC-V hack for unaligned loads #1853

Job	Run time
riscv32-zknh	1m 35s
minimal-versions / minimal-versions	34s
riscv64-zknh	1m 44s
set-msrv / set-msrv	4s
windows (stable, x86_64-pc-windows-gnu)	1m 20s
cross (1.85.0, aarch64-unknown-linux-gnu, default)	45s
cross (1.85.0, powerpc-unknown-linux-gnu, default)	45s
cross (stable, powerpc-unknown-linux-gnu, default)	51s
cross (stable, aarch64-unknown-linux-gnu, default)	41s
wasm (stable, -C target-feature=+simd128)	37s
linux (i686-unknown-linux-gnu, 1.85.0, sudo apt update && sudo apt install gcc-multilib)	1m 17s
macos (stable)	28s
wasm (1.85.0, -C target-feature=+simd128)	34s
build (stable, thumbv7em-none-eabi)	27s
linux (x86_64-unknown-linux-gnu, 1.85.0)	48s
build (1.85.0, loongarch64-unknown-linux-gnu)	23s
build (1.85.0, wasm32-unknown-unknown)	25s
build (stable, loongarch64-unknown-linux-gnu)	23s
wasm (stable, -C target-feature=-simd128)	1m 44s
build (stable, wasm32-unknown-unknown)	32s
windows (1.85.0, x86_64-pc-windows-gnu)	1m 14s
macos (1.85.0)	40s
build (1.85.0, thumbv7em-none-eabi)	24s
linux (i686-unknown-linux-gnu, stable, sudo apt update && sudo apt install gcc-multilib)	1m 12s
linux (x86_64-unknown-linux-gnu, stable)	45s
wasm (1.85.0, -C target-feature=-simd128)	51s
	21m 3s

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