chore: remove 7685 request variants #4604

Job	Run time
cfg-check	28s
clippy	40s
check no_std	31s
docs	39s
doctest	40s
feature-checks	26s
fmt	16s
wasm-unknown	37s
wasm-wasi	36s
test ubuntu-latest stable --no-default-features	25s
test ubuntu-latest stable	26s
test ubuntu-latest stable --all-features	27s
test ubuntu-latest nightly --no-default-features	26s
test ubuntu-latest nightly	40s
test ubuntu-latest nightly --all-features	39s
test ubuntu-latest 1.79 --no-default-features	27s
test ubuntu-latest 1.79	26s
test windows-latest stable --no-default-features	29s
test windows-latest stable	29s
test windows-latest stable --all-features	22s
test windows-latest nightly --no-default-features	22s
test windows-latest nightly	23s
test windows-latest nightly --all-features	22s
test windows-latest 1.79 --no-default-features	22s
test windows-latest 1.79	23s
	12m 1s

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