chore: revert maili deps #1314

Job	Run time
docs	26s
doctest	42s
cfg-check	24s
clippy	1m 1s
examples	14s
feature-checks	1m 12s
feature-powerset	2m 30s
fmt	13s
no-std	31s
wasm-unknown	47s
wasm-wasi	1m 14s
test stable --no-default-features	51s
test stable	47s
test stable --all-features	1m 10s
test nightly --no-default-features	33s
test nightly	42s
test nightly --all-features	1m 0s
test 1.81 --no-default-features	38s
test 1.81	37s
	15m 32s

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