Remove unnecessary macro_uses in rustdoc

Author: jyn514

src/librustdoc/html/render/context.rs

@@ -22,8 +22,7 @@ use super::{
     BASIC_KEYWORDS,
 };
 
-use crate::clean;
-use crate::clean::ExternalCrate;
+use crate::clean::{self, ExternalCrate};
 use crate::config::RenderOptions;
 use crate::docfs::{DocFS, PathError};
 use crate::error::Error;
@@ -35,6 +34,7 @@ use crate::html::format::Buffer;
 use crate::html::markdown::{self, plain_text_summary, ErrorCodes, IdMap};
 use crate::html::{layout, sources};
 use crate::scrape_examples::AllCallLocations;
+use crate::try_err;
 
 /// Major driving force in all rustdoc rendering. This contains information
 /// about where in the tree-like hierarchy rendering is occurring and controls

src/librustdoc/html/render/mod.rs

@@ -77,6 +77,7 @@ use crate::html::highlight;
 use crate::html::markdown::{HeadingOffset, Markdown, MarkdownHtml, MarkdownSummaryLine};
 use crate::html::sources;
 use crate::scrape_examples::CallData;
+use crate::try_none;
 
 /// A pair of name and its optional document.
 crate type NameDoc = (String, Option<String>);

src/librustdoc/html/render/write_shared.rs

@@ -17,6 +17,7 @@ use crate::config::{EmitType, RenderOptions};
 use crate::docfs::PathError;
 use crate::error::Error;
 use crate::html::{layout, static_files};
+use crate::{try_err, try_none};
 
 static FILES_UNVERSIONED: Lazy<FxHashMap<&str, &[u8]>> = Lazy::new(|| {
     map! {

src/librustdoc/lib.rs

@@ -103,17 +103,14 @@ macro_rules! map {
     }}
 }
 
-#[macro_use]
-mod externalfiles;
-
 mod clean;
 mod config;
 mod core;
 mod docfs;
+mod doctest;
 mod doctree;
-#[macro_use]
 mod error;
-mod doctest;
+mod externalfiles;
 mod fold;
 mod formats;
 // used by the error-index generator, so it needs to be public