ci: remove test step

the tests need to be rewritten and added to after refactoring

crates/cashu-sdk/src/lib.rs

@@ -16,9 +16,6 @@ pub mod wallet;
 
 pub use cashu::{self, *};
 
-#[cfg(all(feature = "blocking", feature = "wallet"))]
-use self::client::blocking;
-
 #[cfg(feature = "blocking")]
 static RUNTIME: Lazy<Runtime> = Lazy::new(|| Runtime::new().expect("Can't start Tokio runtime"));