Remove vendored dependencies

While it appears that by now we actually can get successful builds
without Cargo insisting on Internet access by virtue of using the
--frozen flag, maintaining vendored dependencies is somewhat of a pain
point. This state will also get worse with upcoming changes that replace
argparse in favor of structopt and pull in a slew of new dependencies by
doing so. Then there is also the repository structure aspect, which is
non-standard due to the way we vendor dependencies and a potential
source of confusion.
In order to fix these problems, this change removes all the vendored
dependencies we have.

Delete subrepo argparse/:argparse
Delete subrepo base32/:base32
Delete subrepo cc/:cc
Delete subrepo cfg-if/:cfg-if
Delete subrepo getrandom/:getrandom
Delete subrepo lazy-static/:lazy-static
Delete subrepo libc/:libc
Delete subrepo nitrokey-sys/:nitrokey-sys
Delete subrepo nitrokey/:nitrokey
Delete subrepo rand/:rand

1 files changed, 0 insertions, 106 deletions

diff --git a/libc/README.md b/libc/README.md
deleted file mode 100644
index 8a36881..0000000
--- a/libc/README.md
+++ /dev/null
@@ -1,106 +0,0 @@
-[![Azure Status]][Azure] [![Cirrus CI Status]][Cirrus CI] [![Latest Version]][crates.io] [![Documentation]][docs.rs] ![License]
-
-libc - Raw FFI bindings to platforms' system libraries
-====
-
-`libc` provides all of the definitions necessary to easily interoperate with C
-code (or "C-like" code) on each of the platforms that Rust supports. This
-includes type definitions (e.g. `c_int`), constants (e.g. `EINVAL`) as well as
-function headers (e.g. `malloc`).
-
-This crate exports all underlying platform types, functions, and constants under
-the crate root, so all items are accessible as `libc::foo`. The types and values
-of all the exported APIs match the platform that libc is compiled for.
-
-More detailed information about the design of this library can be found in its
-[associated RFC][rfc].
-
-[rfc]: https://github.com/rust-lang/rfcs/blob/master/text/1291-promote-libc.md
-
-## Usage
-
-Add the following to your `Cargo.toml`:
-
-```toml
-[dependencies]
-libc = "0.2"
-```
-
-## Features
-
-* `std`: by default `libc` links to the standard library. Disable this
-  feature remove this dependency and be able to use `libc` in `#![no_std]`
-  crates.
-
-* `extra_traits`: all `struct`s implemented in `libc` are `Copy` and `Clone`.
-  This feature derives `Debug`, `Eq`, `Hash`, and `PartialEq`.
-
-* `const-extern-fn`: Changes some `extern fn`s into `const extern fn`s.
-   This features requires a nightly rustc
-
-* **deprecated**: `use_std` is deprecated, and is equivalent to `std`.
-
-## Rust version support
-
-The minimum supported Rust toolchain version is **Rust 1.13.0** . APIs requiring
-newer Rust features are only available on newer Rust toolchains:
-
-| Feature              | Version |
-|----------------------|---------|
-| `union`              |  1.19.0 |
-| `const mem::size_of` |  1.24.0 |
-| `repr(align)`        |  1.25.0 |
-| `extra_traits`       |  1.25.0 |
-| `core::ffi::c_void`  |  1.30.0 |
-| `repr(packed(N))`    |  1.33.0 |
-
-## Platform support
-
-[Platform-specific documentation (master branch)][docs.master].
-
-See
-[`ci/build.sh`](https://github.com/rust-lang/libc/blob/master/ci/build.sh)
-for the platforms on which `libc` is guaranteed to build for each Rust
-toolchain. The test-matrix at [Azure] and [Cirrus CI] show the
-platforms in which `libc` tests are run.
-
-<div class="platform_docs"></div>
-
-## License
-
-This project is licensed under either of
-
-* [Apache License, Version 2.0](https://www.apache.org/licenses/LICENSE-2.0)
-  ([LICENSE-APACHE](LICENSE-APACHE))
-
-* [MIT License](https://opensource.org/licenses/MIT)
-  ([LICENSE-MIT](LICENSE-MIT))
-
-at your option.
-
-## Contributing
-
-We welcome all people who want to contribute. Please see the [contributing
-instructions] for more information.
-
-[contributing instructions]: CONTRIBUTING.md
-
-Contributions in any form (issues, pull requests, etc.) to this project
-must adhere to Rust's [Code of Conduct].
-
-[Code of Conduct]: https://www.rust-lang.org/policies/code-of-conduct
-
-Unless you explicitly state otherwise, any contribution intentionally submitted
-for inclusion in `libc` by you, as defined in the Apache-2.0 license, shall be
-dual licensed as above, without any additional terms or conditions.
-
-[Azure Status]: https://dev.azure.com/rust-lang2/libc/_apis/build/status/rust-lang.libc?branchName=master
-[Azure]: https://dev.azure.com/rust-lang2/libc/_build/latest?definitionId=1&branchName=master
-[Cirrus CI]: https://cirrus-ci.com/github/rust-lang/libc
-[Cirrus CI Status]: https://api.cirrus-ci.com/github/rust-lang/libc.svg
-[crates.io]: https://crates.io/crates/libc
-[Latest Version]: https://img.shields.io/crates/v/libc.svg
-[Documentation]: https://docs.rs/libc/badge.svg
-[docs.rs]: https://docs.rs/libc
-[License]: https://img.shields.io/crates/l/libc.svg
-[docs.master]: https://rust-lang.github.io/libc/#platform-specific-documentation