Remove dead dependancies.

hammond-downloader/Cargo.toml

@@ -16,6 +16,3 @@ glob = "0.2.11"
 [dependencies.hammond-data]
 path = "../hammond-data"
 
-[dev-dependencies]
-tokio-core = "0.1.12"
-hyper-tls = "0.1.2"

hammond-downloader/src/lib.rs

@@ -1,4 +1,5 @@
 #![recursion_limit = "1024"]
+#![deny(unused_extern_crates, unused)]
 
 #[macro_use]
 extern crate error_chain;
@@ -13,8 +14,3 @@ extern crate tempdir;
 
 pub mod downloader;
 pub mod errors;
-
-#[cfg(test)]
-extern crate hyper_tls;
-#[cfg(test)]
-extern crate tokio_core;