Remove `tokio/net` feature from `client` feature #913

Job	Run time
semver	22s
Check Style	15s
features	24s
Test with Miri	1m 9s
Check MSRV (1.64) on windows-latest	2m 23s
Check MSRV (1.64) on ubuntu-latest	1m 5s
Check MSRV (1.64) on macos-latest	1m 16s
Test nightly on ubuntu-latest	35s
Test nightly on windows-latest	1m 44s
Test stable on macos-latest	48s
Test nightly on macos-latest	35s
Test beta on macos-latest	44s
Test beta on ubuntu-latest	41s
Test beta on windows-latest	1m 25s
Test stable on ubuntu-latest	37s
Test stable on windows-latest	1m 45s
Build docs	20s
CI is green	0s
	16m 8s

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