From e0c357392cd628b397b210b09477365b25e41e1e Mon Sep 17 00:00:00 2001
From: Tony Arcieri <bascule@gmail.com>
Date: Thu, 21 Oct 2021 17:19:28 -0600
Subject: [PATCH] ecdsa: remove `TryFrom`/`TryInto` imports (#454) (#386)

Now that we've upgraded to Rust 2021 edition, these are now available
via the prelude, making explicit imports redundant.
---
 ecdsa/src/der.rs    | 1 -
 ecdsa/src/dev.rs    | 2 --
 ecdsa/src/lib.rs    | 1 -
 ecdsa/src/sign.rs   | 5 +----
 ecdsa/src/verify.rs | 2 +-
 ecdsa/tests/lib.rs  | 1 -
 6 files changed, 2 insertions(+), 10 deletions(-)

diff --git a/ecdsa/src/der.rs b/ecdsa/src/der.rs
index dfb88f7..12a3286 100644
--- a/ecdsa/src/der.rs
+++ b/ecdsa/src/der.rs
@@ -2,7 +2,6 @@
 
 use crate::{Error, Result};
 use core::{
-    convert::{TryFrom, TryInto},
     fmt,
     ops::{Add, Range},
 };
diff --git a/ecdsa/src/dev.rs b/ecdsa/src/dev.rs
index b5eea29..00f869c 100644
--- a/ecdsa/src/dev.rs
+++ b/ecdsa/src/dev.rs
@@ -32,7 +32,6 @@ pub struct TestVector {
 #[cfg_attr(docsrs, doc(cfg(feature = "dev")))]
 macro_rules! new_signing_test {
     ($curve:path, $vectors:expr) => {
-        use core::convert::TryInto;
         use $crate::{
             elliptic_curve::{
                 bigint::Encoding, generic_array::GenericArray, group::ff::PrimeField, Curve,
@@ -69,7 +68,6 @@ macro_rules! new_signing_test {
 #[cfg_attr(docsrs, doc(cfg(feature = "dev")))]
 macro_rules! new_verification_test {
     ($curve:path, $vectors:expr) => {
-        use core::convert::TryInto;
         use $crate::{
             elliptic_curve::{
                 generic_array::GenericArray,
diff --git a/ecdsa/src/lib.rs b/ecdsa/src/lib.rs
index f11dbb0..efce105 100644
--- a/ecdsa/src/lib.rs
+++ b/ecdsa/src/lib.rs
@@ -92,7 +92,6 @@ pub use sign::SigningKey;
 pub use verify::VerifyingKey;
 
 use core::{
-    convert::TryFrom,
     fmt::{self, Debug},
     ops::Add,
 };
diff --git a/ecdsa/src/sign.rs b/ecdsa/src/sign.rs
index 50473c8..7c33295 100644
--- a/ecdsa/src/sign.rs
+++ b/ecdsa/src/sign.rs
@@ -6,10 +6,7 @@ use crate::{
     hazmat::{DigestPrimitive, SignPrimitive},
     rfc6979, Error, Result, Signature, SignatureSize,
 };
-use core::{
-    convert::TryFrom,
-    fmt::{self, Debug},
-};
+use core::fmt::{self, Debug};
 use elliptic_curve::{
     generic_array::ArrayLength,
     group::ff::PrimeField,
diff --git a/ecdsa/src/verify.rs b/ecdsa/src/verify.rs
index 01b3f5c..925a3e5 100644
--- a/ecdsa/src/verify.rs
+++ b/ecdsa/src/verify.rs
@@ -4,7 +4,7 @@ use crate::{
     hazmat::{DigestPrimitive, VerifyPrimitive},
     Error, Result, Signature, SignatureSize,
 };
-use core::{cmp::Ordering, convert::TryFrom, fmt::Debug};
+use core::{cmp::Ordering, fmt::Debug};
 use elliptic_curve::{
     generic_array::ArrayLength,
     ops::Reduce,
diff --git a/ecdsa/tests/lib.rs b/ecdsa/tests/lib.rs
index cb84a4c..1b622f8 100644
--- a/ecdsa/tests/lib.rs
+++ b/ecdsa/tests/lib.rs
@@ -2,7 +2,6 @@
 
 #![cfg(feature = "dev")]
 
-use core::convert::TryFrom;
 use elliptic_curve::dev::MockCurve;
 
 type Signature = ecdsa::Signature<MockCurve>;