Revert "feat(openclip): add bootstrap downloader hardening and tests" · amikos-tech/pure-onnx@6efdcb1

unsafeptr: possible misuse of unsafe.Pointer (govet)

unsafeptr: possible misuse of unsafe.Pointer (govet)

unsafeptr: possible misuse of unsafe.Pointer (govet)

unsafeptr: possible misuse of unsafe.Pointer (govet)

exitAfterDefer: os.Exit will exit, and `defer file.Close()` will not run (gocritic)

elseif: can replace 'else {if cond {}}' with 'else if cond {}' (gocritic)

unlambda: replace `func() error {

exitAfterDefer: log.Fatalf will exit, and `defer func(){...}(...)` will not run (gocritic)

exitAfterDefer: log.Fatal will exit, and `defer func(){...}(...)` will not run (gocritic)

Error return value of `file.Close` is not checked (errcheck)

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