binding: remove redundant trait imports

these are now included in the standard prelude in Rust 2021 edition.

Author: jnqnfe

pulse-binding/src/error.rs

@@ -13,7 +13,6 @@
 
 //! Error management.
 
-use std::convert::TryFrom;
 use std::ffi::CStr;
 use num_traits::FromPrimitive as FromPrimitiveTrait;
 use num_derive::{FromPrimitive, ToPrimitive};

pulse-binding/src/time/microseconds.rs

@@ -13,7 +13,6 @@
 
 //! MicroSeconds.
 
-use std::convert::TryFrom;
 use std::ops::{Add, AddAssign, Div, DivAssign, Mul, MulAssign, Rem, RemAssign, Sub, SubAssign};
 use std::time::Duration;
 use super::op_err;

pulse-binding/src/time/mod.rs

@@ -19,7 +19,6 @@ mod monotonic;
 mod timeval;
 mod unix;
 
-use std::convert::TryFrom;
 use std::time::Duration;
 
 pub use self::microseconds::*;

pulse-binding/src/time/timeval.rs

@@ -14,7 +14,6 @@
 //! Timeval.
 
 use std::cmp::Ordering;
-use std::convert::TryFrom;
 use std::ops::{Add, AddAssign, Div, DivAssign, Mul, MulAssign, Rem, RemAssign, Sub, SubAssign};
 use std::time::Duration;
 use super::{UnixTs, MonotonicTs, MicroSeconds, op_err};