_content: remove unused fonts

Go.dev was updated to use only system fonts.
Removed deprecated font styles and files.

Change-Id: Ibeaca8e5518d41a22323a99f0469bd0a510129d2
Reviewed-on: https://go-review.googlesource.com/c/website/+/374634
Run-TryBot: Jamal Carvalho <jamal@golang.org>
Trust: Jamal Carvalho <jamalcarvalho@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Alex Rakoczy <alex@golang.org>
diff --git a/_content/css/fonts.css b/_content/css/fonts.css
deleted file mode 100644
index ca35a71..0000000
--- a/_content/css/fonts.css
+++ /dev/null
@@ -1,69 +0,0 @@
-@font-face {
-	font-family: 'Go';
-	src: url('/fonts/GoMedium-Italic.woff') format('woff');
-	font-weight: 500;
-	font-style: italic;
-}
-
-@font-face {
-	font-family: 'Go';
-	src: url('/fonts/Go-Italic.woff') format('woff');
-	font-weight: normal;
-	font-style: italic;
-}
-
-@font-face {
-	font-family: 'Go';
-	src: url('/fonts/Go-Bold.woff') format('woff');
-	font-weight: bold;
-	font-style: normal;
-}
-
-@font-face {
-	font-family: 'Go';
-	src: url('/fonts/GoMedium.woff') format('woff');
-	font-weight: 500;
-	font-style: normal;
-}
-
-@font-face {
-	font-family: 'Go';
-	src: url('/fonts/Go-BoldItalic.woff') format('woff');
-	font-weight: bold;
-	font-style: italic;
-}
-
-@font-face {
-	font-family: 'Go';
-	src: url('/fonts/GoRegular.woff') format('woff');
-	font-weight: normal;
-	font-style: normal;
-}
-
-@font-face {
-	font-family: 'Go Mono';
-	src: url('/fonts/GoMono-Bold.woff') format('woff');
-	font-weight: bold;
-	font-style: normal;
-}
-
-@font-face {
-	font-family: 'Go Mono';
-	src: url('/fonts/GoMono.woff') format('woff');
-	font-weight: normal;
-	font-style: normal;
-}
-
-@font-face {
-	font-family: 'Go Mono';
-	src: url('/fonts/GoMono-Italic.woff') format('woff');
-	font-weight: normal;
-	font-style: italic;
-}
-
-@font-face {
-	font-family: 'Go Mono';
-	src: url('/fonts/GoMono-BoldItalic.woff') format('woff');
-	font-weight: bold;
-	font-style: italic;
-}
diff --git a/_content/fonts/Go-Bold.woff b/_content/fonts/Go-Bold.woff
deleted file mode 100644
index 9e20c5d..0000000
--- a/_content/fonts/Go-Bold.woff
+++ /dev/null
Binary files differ
diff --git a/_content/fonts/Go-BoldItalic.woff b/_content/fonts/Go-BoldItalic.woff
deleted file mode 100644
index 02af73a..0000000
--- a/_content/fonts/Go-BoldItalic.woff
+++ /dev/null
Binary files differ
diff --git a/_content/fonts/Go-Italic.woff b/_content/fonts/Go-Italic.woff
deleted file mode 100644
index ac68078..0000000
--- a/_content/fonts/Go-Italic.woff
+++ /dev/null
Binary files differ
diff --git a/_content/fonts/GoMedium-Italic.woff b/_content/fonts/GoMedium-Italic.woff
deleted file mode 100644
index 49c509c..0000000
--- a/_content/fonts/GoMedium-Italic.woff
+++ /dev/null
Binary files differ
diff --git a/_content/fonts/GoMedium.woff b/_content/fonts/GoMedium.woff
deleted file mode 100644
index 2541515..0000000
--- a/_content/fonts/GoMedium.woff
+++ /dev/null
Binary files differ
diff --git a/_content/fonts/GoMono-Bold.woff b/_content/fonts/GoMono-Bold.woff
deleted file mode 100644
index f636e56..0000000
--- a/_content/fonts/GoMono-Bold.woff
+++ /dev/null
Binary files differ
diff --git a/_content/fonts/GoMono-BoldItalic.woff b/_content/fonts/GoMono-BoldItalic.woff
deleted file mode 100644
index 3d977e0..0000000
--- a/_content/fonts/GoMono-BoldItalic.woff
+++ /dev/null
Binary files differ
diff --git a/_content/fonts/GoMono-Italic.woff b/_content/fonts/GoMono-Italic.woff
deleted file mode 100644
index 9544027..0000000
--- a/_content/fonts/GoMono-Italic.woff
+++ /dev/null
Binary files differ
diff --git a/_content/fonts/GoMono.woff b/_content/fonts/GoMono.woff
deleted file mode 100644
index f7e5ffe..0000000
--- a/_content/fonts/GoMono.woff
+++ /dev/null
Binary files differ
diff --git a/_content/fonts/GoRegular.woff b/_content/fonts/GoRegular.woff
deleted file mode 100644
index 5292f4a..0000000
--- a/_content/fonts/GoRegular.woff
+++ /dev/null
Binary files differ
diff --git a/_content/site.tmpl b/_content/site.tmpl
index 8c9db4c..bc638a8 100644
--- a/_content/site.tmpl
+++ b/_content/site.tmpl
@@ -14,10 +14,9 @@
 <meta name="description" content="Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 <meta name="theme-color" content="#00add8">
-<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Google+Sans:400,500,600|Work+Sans:400,500,600|Roboto:400,500,700|Open+Sans:Source+Code+Pro|Material+Icons">
+<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Material+Icons">
 <link rel="stylesheet" href="/css/styles.css">
 {{if strings.HasPrefix .URL "/blog/"}}
-<link rel="stylesheet" href="/css/blogfonts.css">
 <link rel="alternate" title="The Go Blog" type="application/atom+xml" href="/blog/feed.atom">
 {{end}}
   <!-- Google Tag Manager -->