Apply clippy::unused_trait_names lint #3061

Job	Run time
test (1.56)	1m 24s
test (stable)	43s
test (beta)	45s
test (nightly)	2m 0s
msrv / prepare	7s
tidy / prepare	2s
miri / miri	1m 1s
tidy / tidy	49s
tidy / clippy	21s
tidy / check-external-types / check-external-types	20s
tidy / deny / deny	15s
tidy / docs / docs	19s
msrv / build (ubuntu-latest)	7m 59s
msrv / build (windows-latest)	8m 12s
	24m 17s

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