Unused imports in host_id_bsd.go cause build failures

[Achooo]

Description

Remove unused imports in https://github.com/open-telemetry/opentelemetry-go/blob/main/sdk/resource/host_id_bsd.go

Environment

See these GitHub actions run

• OS:
  Ubuntu 22.04.2 LTS
• Architecture: amd64 / 386
• Go Version: 1.20
• opentelemetry-go version: v1.15.0-rc.2

Steps To Reproduce

1. Use the configuration:
2. Run: go build for particular architecture (e.g. GOARCH=386 CGO_ENABLED=0 go build -tags "")
3. See error

Expected behavior

Builds correctly

[Achooo]

To avoid this in the future, looks like build tags can be enabled manually in golangci-lint which might avoid this problem? Would specific configuration to only check limited linters (e.g. goimports) be needed?