Remove js script for getting latest screenshots

script/download_latest_screenshots.js

diff --git a/script/download_latest_screenshots.js b/script/download_latest_screenshots.js
deleted file mode 100644
index e6a32ed..0000000
--- a/script/download_latest_screenshots.js
+++ /dev/null
@@ -1,32 +0,0 @@
-// This script assumes the following:
-//   1. That the json it will be working with will be in the form of the data that is returned
-//      by https://circleci.com/api/v1/project/mathquill/mathquill/latest/artifacts
-//   2. If the environment variable $CIRCLE_ARTIFACTS is not set images will be saved in /tmp
-//   3. There is an `img` directory in $CIRCLE_ARTIFACTS or /tmp.
-//
-// This scripts creates following files for each browser in browserVersions in the artifacts:
-//    $CIRCLE_ARTIFACTS/imgs/PREV_{browser_version_platform}.png
-//
-// The intention of this script is that it will be ran from CircleCI
-//
-// Example usage:
-//   curl https://circleci.com/api/v1/project/mathquill/mathquill/latest/artifacts > latest_artifacts.json
-//   node download_latest_screenshots.js latest_artifacts.json
-
-var exec = require('child_process').exec;
-var baseDir = process.env['CIRCLE_ARTIFACTS'] || '/tmp';
-var allImgsDir = baseDir+'/imgs';
-var artifacts = require('./'+process.argv[2]);
-
-var images = artifacts.filter(function(a) { return /.*png$/.test(a.path); })
-
-var xs = ['curl'];
-images.forEach(function(image) {
-  var str = '$CIRCLE_ARTIFACTS/img/';
-  var imgPath = allImgsDir+'/PREV_'+image.pretty_path.slice(str.length+1);
-  xs.push(image.url, '-o', imgPath);
-});
-
-exec(xs.join(' '), function(err) {
-  if (err) console.log(err);
-});