Remove broken PDF export scripts

_en/index.md

@@ -22,7 +22,7 @@ Each chapter focuses on a particular part of the API, and will soon get you maki
 your own mods.
 
 As well as [reading this book online](https://rubenwardy.com/minetest_modding_book),
-you can also [download it in PDF or HTML form](https://github.com/rubenwardy/minetest_modding_book/releases).
+you can also [download it in HTML form](https://github.com/rubenwardy/minetest_modding_book/releases).
 
 ### Feedback and Contributions
 

_epub.yml

@@ -1,7 +0,0 @@
-epub:
-	name: Minetest Modding Book
-	title: Minetest Modding Book
-	identifier: rubenwardy.com/minetest_modding_book
-	description: An easy guide in learning how to create mods for Minetest.
-	creator: rubenwardy
-	rights: CC-BY-SA 3.0

utils/convert_to_pdf.js

@@ -1,51 +0,0 @@
----
----
-"use strict";
-
-Number.prototype.pad = function(size) {
-	size = size || 2;
-	var s = String(this)
-	while (s.length < size) {
-		s = "0" + s;
-	}
-	return s;
-}
-
-const puppeteer = require("puppeteer")
-const fs = require("fs")
-const os = require("os")
-
-var links = {{ site.data.links_en | jsonify }};
-
-(async() => {
-	const browser = await puppeteer.launch()
-	const page = await browser.newPage()
-
-	var root = "file:///" + __dirname + "/../en/"
-	console.log("Root is: " + root)
-
-	for (var i = 0; i < links.length; i++) {
-		var link = links[i]
-		if (link.link) {
-			console.log("Rendering " + link.title)
-			await page.goto(root + link.link, {waitUntil: "networkidle"})
-
-			// page.pdf() is currently supported only in headless mode.
-			// @see https://bugs.chromium.org/p/chromium/issues/detail?id=753118
-			const margin = "0.2in"
-			const file_seg = link.num ? link.num.pad() : ("00_" + link.title.replace(".", "_"))
-			await page.pdf({
-				path: "tmp/page_" + file_seg + ".pdf",
-				format: "A5",
-				margin: {
-					top: margin,
-					right: margin,
-					bottom: margin,
-					left: margin,
-				}
-			})
-		}
-	}
-	browser.close()
-
-})()

utils/convert_to_pdf.sh

@@ -1,6 +0,0 @@
-#!/bin/sh
-
-jekyll build
-mkdir -p tmp
-n use latest _site/utils/convert_to_pdf.js
-pdfunite tmp/page*.pdf tmp/book.pdf