Use sans-serif font for doc text

Author: GuillaumeGomez

src/librustdoc/build.rs

@@ -20,10 +20,6 @@ fn main() {
         "static/fonts/FiraSans-Regular.woff2",
         "static/fonts/FiraSans-Medium.woff2",
         "static/fonts/FiraSans-LICENSE.txt",
-        "static/fonts/SourceSerif4-Regular.ttf.woff2",
-        "static/fonts/SourceSerif4-Bold.ttf.woff2",
-        "static/fonts/SourceSerif4-It.ttf.woff2",
-        "static/fonts/SourceSerif4-LICENSE.md",
         "static/fonts/SourceCodePro-Regular.ttf.woff2",
         "static/fonts/SourceCodePro-Semibold.ttf.woff2",
         "static/fonts/SourceCodePro-It.ttf.woff2",

src/librustdoc/html/static/css/rustdoc.css

@@ -56,32 +56,6 @@ xmlns="http://www.w3.org/2000/svg" fill="black" height="18px">\
 	font-display: swap;
 }
 
-/* See SourceSerif4-LICENSE.md for the Source Serif 4 license. */
-@font-face {
-	font-family: 'Source Serif 4';
-	font-style: normal;
-	font-weight: 400;
-	src: local('Source Serif 4'),
-		url("SourceSerif4-Regular-6b053e98.ttf.woff2") format("woff2");
-	font-display: swap;
-}
-@font-face {
-	font-family: 'Source Serif 4';
-	font-style: italic;
-	font-weight: 400;
-	src: local('Source Serif 4 Italic'),
-		url("SourceSerif4-It-ca3b17ed.ttf.woff2") format("woff2");
-	font-display: swap;
-}
-@font-face {
-	font-family: 'Source Serif 4';
-	font-style: normal;
-	font-weight: 700;
-	src: local('Source Serif 4 Bold'),
-		url("SourceSerif4-Bold-6d4fd4c0.ttf.woff2") format("woff2");
-	font-display: swap;
-}
-
 /* See SourceCodePro-LICENSE.txt for the Source Code Pro license. */
 @font-face {
 	font-family: 'Source Code Pro';
@@ -124,7 +98,7 @@ xmlns="http://www.w3.org/2000/svg" fill="black" height="18px">\
 body {
 	/* Line spacing at least 1.5 per Web Content Accessibility Guidelines
 	   https://www.w3.org/WAI/WCAG21/Understanding/visual-presentation.html */
-	font: 1rem/1.5 "Source Serif 4", NanumBarunGothic, serif;
+	font: 1rem/1.5 "Fira Sans", sans-serif;
 	margin: 0;
 	position: relative;
 	/* We use overflow-wrap: break-word for Safari, which doesn't recognize
@@ -234,26 +208,6 @@ h4.code-header {
 	margin: 0.6em 0;
 }
 
-#crate-search,
-h1, h2, h3, h4, h5, h6,
-.sidebar,
-.mobile-topbar,
-.search-input,
-.search-results .result-name,
-.item-name > a,
-.out-of-band,
-.sub-heading,
-span.since,
-a.src,
-rustdoc-toolbar,
-summary.hideme,
-.scraped-example-list,
-.rustdoc-breadcrumbs,
-/* This selector is for the items listed in the "all items" page. */
-ul.all-items {
-	font-family: "Fira Sans", Arial, NanumBarunGothic, sans-serif;
-}
-
 #toggle-all-docs,
 a.anchor,
 .section-header a,

src/librustdoc/html/static_files.rs

@@ -101,10 +101,6 @@ static_files! {
     fira_sans_regular => "static/fonts/FiraSans-Regular.woff2",
     fira_sans_medium => "static/fonts/FiraSans-Medium.woff2",
     fira_sans_license => "static/fonts/FiraSans-LICENSE.txt",
-    source_serif_4_regular => "static/fonts/SourceSerif4-Regular.ttf.woff2",
-    source_serif_4_bold => "static/fonts/SourceSerif4-Bold.ttf.woff2",
-    source_serif_4_italic => "static/fonts/SourceSerif4-It.ttf.woff2",
-    source_serif_4_license => "static/fonts/SourceSerif4-LICENSE.md",
     source_code_pro_regular => "static/fonts/SourceCodePro-Regular.ttf.woff2",
     source_code_pro_semibold => "static/fonts/SourceCodePro-Semibold.ttf.woff2",
     source_code_pro_italic => "static/fonts/SourceCodePro-It.ttf.woff2",

src/librustdoc/html/templates/page.html

@@ -7,7 +7,7 @@
     <meta name="description" content="{{page.description}}"> {# #}
     <title>{{page.title}}</title> {# #}
     <script>if(window.location.protocol!=="file:") {# Hack to skip preloading fonts locally - see #98769 #}
-    document.head.insertAdjacentHTML("beforeend","{{files.source_serif_4_regular}},{{files.fira_sans_regular}},{{files.fira_sans_medium}},{{files.source_code_pro_regular}},{{files.source_code_pro_semibold}}".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2" crossorigin href="{{static_root_path|safe}}${f}">`).join("")) {# #}
+    document.head.insertAdjacentHTML("beforeend","{{files.fira_sans_regular}},{{files.fira_sans_medium}},{{files.source_code_pro_regular}},{{files.source_code_pro_semibold}}".split(",").map(f=>`<link rel="preload" as="font" type="font/woff2" crossorigin href="{{static_root_path|safe}}${f}">`).join("")) {# #}
     </script> {# #}
     <link rel="stylesheet" {#+ #}
           href="{{static_root_path|safe}}{{files.normalize_css}}"> {# #}