Remove p5 npm for now

https://registry.npmjs.org/p5/-/p5-0.2.14.tgz is broken - doesn’t
include source files, so nothing is copied and build fails.

ajax/libs/p5.js/package.json

@@ -1,17 +1,7 @@
 {
   "name": "p5.js",
   "filename": "p5.min.js",
-  "npmName": "p5",
-  "npmFileMap": [
-    {
-      "basePath": "/dist/",
-      "files": [
-        "p5.min.js",
-        "p5.js"
-      ]
-    }
-  ],
-  "version": "0.2.14",
+  "version": "0.2.13",
   "description": "p5.js is a JavaScript client-side library for creating graphic and interactive experiences, using canvas and HTML5, based on the core principles of Processing.",
   "homepage": "http://p5js.org",
   "keywords": [