chore: remove unused import and unexpected cfg warnings

Author: enigbe

rust/api/Cargo.toml

@@ -17,3 +17,6 @@ reqwest =  { version = "0.11.13", default-features = false, features = ["rustls-
 
 [features]
 _test_utils =["rand"]
+
+[lints.rust]
+unexpected_cfgs = { level = "warn", check-cfg = ['cfg(genproto)'] }

rust/impls/src/lib.rs

@@ -15,5 +15,4 @@ mod migrations;
 /// Contains [PostgreSQL](https://www.postgresql.org/) based backend implementation for VSS.
 pub mod postgres_store;
 
-#[macro_use]
 extern crate api;