chore: remove docs.rs documentation link from Cargo.toml

This has been the default for a long time. crates.io and lib.rs
already assume docs.rs to be the URL for docs.

Author: paolobarbolini

Cargo.toml

@@ -5,7 +5,6 @@ authors = ["Sergio Benitez <[email protected]>", "Alex Crichton <[email protected]
 edition = "2021"
 license = "MIT OR Apache-2.0"
 repository = "https://github.com/SergioBenitez/cookie-rs"
-documentation = "https://docs.rs/cookie"
 readme = "README.md"
 build = "build.rs"
 description = """