third-party/rust: update bindgen to 0.70.1

Summary: This includes all the previous patches so we can drop those.

Reviewed By: dtolnay

Differential Revision: D63152933

fbshipit-source-id: ccfbfe027ad188e8e58741af25abeda724a0914e

Cargo.toml

@@ -1,8 +1,6 @@
 [patch.crates-io]
 abomonation = { git = "https://github.com/markbt/abomonation", rev = "0f43346d2afa2aedc64d61f3f4273e8d1e454642" }
 base64urlsafedata = { git = "https://github.com/kanidm/webauthn-rs.git", rev = "d278c56adfa39a0723c79bdcd461644194bc5138" }
-bindgen = { git = "https://github.com/rust-lang/rust-bindgen", rev = "7ea3f36d58399204a6ab81a38be14c3c363c296b" }
-bindgen-cli = { git = "https://github.com/rust-lang/rust-bindgen", rev = "7ea3f36d58399204a6ab81a38be14c3c363c296b" }
 cxx = { package = "cxx", git = "https://github.com/facebookexperimental/cxx.git", rev = "2ea39c564284a70fdc1793fd72c442433e5a2638" }
 cxx-build = { package = "cxx-build", git = "https://github.com/facebookexperimental/cxx.git", rev = "2ea39c564284a70fdc1793fd72c442433e5a2638" }
 displaydoc = { git = "https://github.com/yaahc/displaydoc", rev = "7dc6e324b1788a6b7fb9f3a1953c512923a3e9f0" }