Remove --print unversioned-files from rustdoc

This flag isn't needed anymore. See rust-lang#83784.

src/librustdoc/config.rs

@@ -349,13 +349,6 @@ impl Options {
             return Err(0);
         }
 
-        if matches.opt_strs("print").iter().any(|opt| opt == "unversioned-files") {
-            for file in crate::html::render::FILES_UNVERSIONED.keys() {
-                println!("{}", file);
-            }
-            return Err(0);
-        }
-
         let color = config::parse_color(&matches);
         let config::JsonConfig { json_rendered, json_unused_externs, .. } =
             config::parse_json(&matches);

src/librustdoc/html/render/mod.rs

@@ -33,7 +33,6 @@ mod print_item;
 mod write_shared;
 
 crate use context::*;
-crate use write_shared::FILES_UNVERSIONED;
 
 use std::collections::VecDeque;
 use std::default::Default;

src/librustdoc/html/render/write_shared.rs

@@ -18,7 +18,7 @@ use crate::docfs::PathError;
 use crate::error::Error;
 use crate::html::{layout, static_files};
 
-crate static FILES_UNVERSIONED: Lazy<FxHashMap<&str, &[u8]>> = Lazy::new(|| {
+static FILES_UNVERSIONED: Lazy<FxHashMap<&str, &[u8]>> = Lazy::new(|| {
     map! {
         "FiraSans-Regular.woff2" => static_files::fira_sans::REGULAR2,
         "FiraSans-Medium.woff2" => static_files::fira_sans::MEDIUM2,

src/librustdoc/lib.rs

@@ -581,9 +581,6 @@ fn opts() -> Vec<RustcOptGroup> {
                 "Generate JSON file at the top level instead of generating HTML redirection files",
             )
         }),
-        unstable("print", |o| {
-            o.optmulti("", "print", "Rustdoc information to print on stdout", "[unversioned-files]")
-        }),
         unstable("emit", |o| {
             o.optmulti(
                 "",