Cleans up warnings, unused functions and features (#643)

libraries/opensk/Cargo.toml

@@ -40,7 +40,7 @@ default = ["config_command", "with_ctap1"]
 config_command = []
 debug_ctap = []
 std = ["crypto/std", "persistent_store/std", "rand/std_rng", "config_command"]
-with_ctap1 = ["crypto/with_ctap1"]
+with_ctap1 = []
 vendor_hid = []
 fuzz = ["arbitrary", "std"]
 ed25519 = ["ed25519-compact"]

libraries/opensk/src/api/key_store.rs

@@ -375,11 +375,9 @@ fn extract_map(cbor_value: cbor::Value) -> Result<Vec<(cbor::Value, cbor::Value)
 #[cfg(test)]
 mod test {
     use super::*;
-    use crate::api::crypto::ecdsa::SecretKey;
     use crate::api::customization::Customization;
     use crate::ctap::data_formats::SignatureAlgorithm;
     use crate::env::test::TestEnv;
-    use crate::env::EcdsaSk;
 
     const UNSUPPORTED_CREDENTIAL_ID_VERSION: u8 = 0x80;