Drop byteorder dependency

Ref: https://github.com/image-rs/image/issues/1000

src/lib.rs

@@ -6,7 +6,6 @@
 //! # Related Links
 //! * <https://www.adobe.io/open/standards/TIFF.html> - The TIFF specification
 
-extern crate byteorder;
 extern crate lzw;
 extern crate miniz_oxide;