Finish up header trait

Author: yoshuawuyts

src/auth/basic_auth.rs

@@ -1,5 +1,3 @@
-use anyhow::bail;
-
 use crate::auth::{AuthenticationScheme, Authorization};
 use crate::headers::{HeaderName, HeaderValue, Headers, AUTHORIZATION};
 use crate::Status;

src/conditional/if_match.rs

@@ -1,7 +1,5 @@
 //! Apply the HTTP method if the ETag matches.
 
-use http::header::IF_MATCH;
-
 use crate::conditional::ETag;
 use crate::headers::{HeaderName, HeaderValue, Headers, ToHeaderValues, IF_MATCH};
 

src/conditional/if_modified_since.rs

@@ -1,5 +1,3 @@
-use http::header::IF_MODIFIED_SINCE;
-
 use crate::headers::{HeaderName, HeaderValue, Headers, ToHeaderValues, IF_MODIFIED_SINCE};
 use crate::utils::{fmt_http_date, parse_http_date};
 

src/conditional/if_none_match.rs

@@ -3,8 +3,6 @@
 //! This is used to update caches or to prevent uploading a new resource when
 //! one already exists.
 
-use http::header::IF_NONE_MATCH;
-
 use crate::conditional::ETag;
 use crate::headers::{HeaderName, HeaderValue, Headers, ToHeaderValues, IF_NONE_MATCH};
 

src/conditional/if_unmodified_since.rs

@@ -1,5 +1,3 @@
-use http::header::IF_UNMODIFIED_SINCE;
-
 use crate::headers::{HeaderName, HeaderValue, Headers, ToHeaderValues, IF_UNMODIFIED_SINCE};
 use crate::utils::{fmt_http_date, parse_http_date};
 

src/conditional/last_modified.rs

@@ -1,5 +1,3 @@
-use http::header::LAST_MODIFIED;
-
 use crate::headers::{HeaderName, HeaderValue, Headers, ToHeaderValues, LAST_MODIFIED};
 use crate::utils::{fmt_http_date, parse_http_date};
 

src/content/accept.rs

@@ -9,8 +9,6 @@ use std::fmt::{self, Debug, Write};
 use std::option;
 use std::slice;
 
-use super::AcceptEncoding;
-
 /// Client header advertising which media types the client is able to understand.
 ///
 /// Using content negotiation, the server then selects one of the proposals, uses