chore: remove redundant cfgs (#26) #88

Job	Run time
docs	31s
doctest	37s
clippy	24s
feature-checks	41s
no-std	27s
test ubuntu-latest stable --no-default-features	26s
wasm-unknown	17s
test ubuntu-latest stable	21s
wasm-wasi	31s
cfg-check	19s
test ubuntu-latest stable --all-features	34s
fmt	10s
test ubuntu-latest nightly --no-default-features	26s
test ubuntu-latest nightly	35s
test ubuntu-latest nightly --all-features	32s
test ubuntu-latest 1.81 --no-default-features	23s
test ubuntu-latest 1.81	27s
test windows-latest stable --no-default-features	2m 5s
test windows-latest stable	2m 40s
test windows-latest stable --all-features	2m 7s
test windows-latest nightly --no-default-features	1m 4s
test windows-latest nightly	59s
test windows-latest nightly --all-features	1m 30s
test windows-latest 1.81 --no-default-features	1m 1s
test windows-latest 1.81	50s
	19m 57s

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