pss: remove redundant `verify_algorithm_id` call in `SigningKey::try_from` #1233

Job	Run time
build (1.85.0, thumbv7em-none-eabi)	27s
build (stable, thumbv7em-none-eabi)	17s
build (stable, wasm32-unknown-unknown)	19s
nightly	6m 17s
build (1.85.0, wasm32-unknown-unknown)	23s
test (1.85.0)	4m 50s
test (stable)	4m 40s
minimal-versions	0s
	17m 13s

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