Cargo.toml: drop documentation link
Drop the `documentation` key since crates.io now automatically points to
`docs.rs`.
@@ -5,7 +5,6 @@ authors = ["Fabian Schuiki <fschuiki@iis.ee.ethz.ch>"]
edition = "2018"
description = "A compiler for hardware description languages."
-documentation = "https://fabianschuiki.github.io/moore"
repository = "https://github.com/fabianschuiki/moore"
readme = "README.md"
license = "MIT"
