chore: remove upcoming v3 notice

package.json

@@ -10,7 +10,6 @@
 		"scripts"
 	],
 	"scripts": {
-		"postinstall": "node scripts/postinstall",
 		"test": "node ./test.js"
 	},
 	"repository": {

scripts/postinstall

@@ -1,24 +0,0 @@
-#!/usr/bin/env node
-'use strict';
-
-// BG WH \u001b[47m
-// BOLD  \u001b[1m
-// RED   \u001b[31m
-// GREEN \u001b[32m
-// RESET \u001b[0m
-
-setTimeout(function() {
-    [
-			'',
-			'\u001b[31mGreenlock and ACME.js v3 are on the way!\u001b[0m',
-			'Watch for updates at https://indiegogo.com/at/greenlock',
-			''
-		]
-		.forEach(function(line) {
-			console.info(line);
-		});
-}, 300);
-
-setTimeout(function() {
-	// give time to read
-}, 1500);