rust: remove TryFrom/TryInto imports

Not neede as of the 2021 edition:

https://doc.rust-lang.org/edition-guide/rust-2021/prelude.html

Author: benma

src/rust/bitbox02-rust/src/hww/api/bitcoin.rs

@@ -46,8 +46,6 @@ use pb::BtcCoin;
 use pb::BtcScriptConfig;
 
 use alloc::string::String;
-use core::convert::TryFrom;
-use core::convert::TryInto;
 
 /// Like `hww::next_request`, but for Bitcoin requests/responses.
 pub async fn next_request(response: pb::btc_response::Response) -> Result<Request, Error> {

src/rust/bitbox02-rust/src/hww/api/bitcoin/common.rs

@@ -19,7 +19,6 @@ use crate::xpubcache::Bip32XpubCache;
 
 use alloc::string::String;
 use alloc::vec::Vec;
-use core::convert::TryFrom;
 
 use pb::btc_script_config::SimpleType;
 pub use pb::btc_sign_init_request::FormatUnit;

src/rust/bitbox02-rust/src/hww/api/bitcoin/multisig.rs

@@ -26,8 +26,6 @@ use crate::workflow::confirm;
 
 use alloc::string::String;
 use alloc::vec::Vec;
-use core::convert::TryFrom;
-use core::convert::TryInto;
 
 use sha2::{Digest, Sha256};
 

src/rust/bitbox02-rust/src/hww/api/bitcoin/registration.rs

@@ -23,8 +23,6 @@ use pb::btc_response::Response;
 use pb::btc_script_config::Config;
 use pb::BtcCoin;
 
-use core::convert::TryFrom;
-
 use super::multisig::SortXpubs;
 
 use crate::workflow::{confirm, status, trinary_input_string};

src/rust/bitbox02-rust/src/hww/api/bitcoin/signmsg.rs

@@ -13,8 +13,6 @@
 // limitations under the License.
 
 use alloc::vec::Vec;
-use core::convert::TryFrom;
-use core::convert::TryInto;
 
 use sha2::{Digest, Sha256};
 

src/rust/bitbox02-rust/src/hww/api/bitcoin/signtx.rs

@@ -23,8 +23,6 @@ use crate::workflow::{confirm, status, transaction};
 use crate::xpubcache::Bip32XpubCache;
 
 use alloc::vec::Vec;
-use core::convert::TryFrom;
-use core::convert::TryInto;
 
 use pb::request::Request;
 use pb::response::Response;

src/rust/bitbox02-rust/src/hww/api/cardano/address.rs

@@ -17,7 +17,6 @@ use super::Error;
 
 use alloc::string::String;
 use alloc::vec::Vec;
-use core::convert::TryFrom;
 
 use crate::workflow::confirm;
 

src/rust/bitbox02-rust/src/hww/api/cardano/sign_transaction.rs

@@ -20,7 +20,6 @@ use super::Error;
 
 use alloc::string::String;
 use alloc::vec::Vec;
-use core::convert::TryFrom;
 
 use blake2::{
     digest::{Update, VariableOutput},

src/rust/bitbox02-rust/src/hww/api/cardano/sign_transaction/cbor.rs

@@ -17,7 +17,6 @@ use super::super::pb;
 use super::super::Error;
 
 use alloc::vec::Vec;
-use core::convert::TryFrom;
 
 use digest::Update;
 use minicbor::encode::{Encoder, Write};

src/rust/bitbox02-rust/src/hww/api/ethereum/pubrequest.rs

@@ -22,9 +22,6 @@ use crate::bip32;
 use crate::keystore;
 use crate::workflow::confirm;
 
-use core::convert::TryFrom;
-use core::convert::TryInto;
-
 async fn process_address(request: &pb::EthPubRequest) -> Result<Response, Error> {
     let coin = pb::EthCoin::try_from(request.coin)?;