Remove unused dependency

Author: hannobraun

Cargo.toml

@@ -29,7 +29,6 @@ path = "src/main.rs"
 [dependencies]
 cast = "0.2.2"
 clap = "2.26.0"
-either = "1.1.0"
 error-chain = "0.11.0"
 inflections = "1.1.0"
 quote = "0.3.15"

src/main.rs

@@ -2,7 +2,6 @@
 
 extern crate cast;
 extern crate clap;
-extern crate either;
 #[macro_use]
 extern crate error_chain;
 extern crate inflections;