refactor(hostd): remove unused logs API #503

Job	Run time
release	12m 43s
release-docker	15m 23s
test-go (ubuntu-latest, ./renterd)	45s
test-go (ubuntu-latest, ./hostd)	51s
test-go (ubuntu-latest, ./walletd)	46s
test-js	3m 53s
test-go (macos-latest, ./renterd)	1m 14s
test-go (macos-latest, ./hostd)	52s
test-go (macos-latest, ./walletd)	1m 5s
test-go (windows-latest, ./renterd)	1m 33s
test-go (windows-latest, ./hostd)	1m 27s
test-go (windows-latest, ./walletd)	1m 51s
e2e / renterd-e2e-shard-tests	0s
e2e / hostd-e2e-shard-tests	0s
e2e / walletd-e2e-shard-tests	0s
e2e / explorer-e2e-shard-tests	0s
e2e / explorer-e2e-merge-reports / merge-reports	8s
e2e / hostd-e2e-merge-reports / merge-reports	9s
e2e / renterd-e2e-merge-reports / merge-reports	6s
e2e / walletd-e2e-merge-reports / merge-reports	16s
	43m 2s

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