chore(dependencies): remove libc crate from dependencies #2260

Job	Run time
Check Style	8s
Verify hyper.h is up to date	31s
Test with Miri	1m 9s
features	22s
Test C API (FFI)	20s
Check MSRV	28s
Test stable on ubuntu-latest	1m 31s
udeps	31s
Test stable on windows-latest	3m 27s
Test stable on macOS-latest	1m 31s
Test beta on ubuntu-latest	1m 31s
Test beta on windows-latest	2m 23s
Test beta on macOS-latest	1m 51s
Test nightly on ubuntu-latest	1m 42s
Test nightly on windows-latest	3m 12s
Test nightly on macOS-latest	1m 42s
Check exposed types	25s
Build docs	21s
CI is green	1s
	23m 6s

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