Yank all broken versions from crates.io

[klausi]

https://crates.io/crates/libz-sys contains quite a few versions that do not compile with recent Rust versions, they should be yanked.

• 0.0.1:

error: expected identifier, found `"pkg-config"`
 --> /home/klausi/.cargo/registry/src/github.com-1ecc6299db9ec823/libz-sys-0.0.1/src/build.rs:1:14
  |
1 | extern crate "pkg-config" as pkg_config;
  |              ^^^^^^^^^^^^ expected identifier

error: aborting due to previous error

error: Could not compile `libz-sys`.

• 0.1.0

0.1.1 does not compile because pkg-config v0.3.0 does not compile, so we probably also need to yank broken versions there.

[alexcrichton]

Thanks for the report! I commented over on the Cargo PR though in that I don't think this is quite the right solution, so I'm going to close this.