Remove documentation entry from Cargo.toml (#88)

Author: dalance

Cargo.toml

@@ -5,7 +5,6 @@ authors = ["Sentry <[email protected]>"]
 keywords = ["javascript", "sourcemap", "sourcemaps"]
 description = "Basic sourcemap handling for Rust"
 homepage = "https://github.com/getsentry/rust-sourcemap"
-documentation = "https://getsentry.github.io/rust-sourcemap/"
 repository = "https://github.com/getsentry/rust-sourcemap"
 license = "BSD-3-Clause"
 readme = "README.md"