remove unused jsonschema

Author: Mr-Leshiy

rust/signed_doc/Cargo.toml

@@ -15,8 +15,6 @@ catalyst-types = { version = "0.0.1", git = "https://github.com/input-output-hk/
 anyhow = "1.0.95"
 serde = { version = "1.0.217", features = ["derive"] }
 serde_json = "1.0.134"
-# TODO: Bump this to the latest version and fix the code
-jsonschema = "0.18.3"
 coset = "0.3.8"
 minicbor = "0.25.1"
 brotli = "7.0.0"