Remove headless tests

Infrastructure doesn't work anymore. NPM wins.

README.md

@@ -422,12 +422,6 @@ To prepare tests for browsers:
 and then open `test/browser/test.html` (or `test/browser/test-fast.html`) to
 run them.
 
-To run headless browser tests with `tape-run` (powered by Electron):
-
-    $ npm run test-browser
-
-(If you get `Error: spawn ENOENT`, install *xvfb*: `sudo apt-get install xvfb`.)
-
 To run tests in both Node and Electron:
 
     $ npm test

package.json

@@ -11,7 +11,6 @@
     "build": "uglifyjs nacl.js -c -m -o nacl.min.js && uglifyjs nacl-fast.js -c -m -o nacl-fast.min.js",
     "test-node": "tape test/*.js | faucet",
     "test-node-all": "make -C test/c && tape test/*.js test/c/*.js | faucet",
-    "test-browser": "NACL_SRC=${NACL_SRC:='nacl.min.js'} && npm run build-test-browser && cat $NACL_SRC test/browser/_bundle.js | tape-run | faucet",
     "build-test-browser": "browserify test/browser/init.js test/*.js | uglifyjs -c -m -o test/browser/_bundle.js 2>/dev/null && browserify test/browser/init.js test/*.quick.js | uglifyjs -c -m -o test/browser/_bundle-quick.js 2>/dev/null",
     "test": "npm run test-node-all",
     "bench": "node test/benchmark/bench.js",
@@ -43,12 +42,10 @@
   "homepage": "https://tweetnacl.js.org",
   "devDependencies": {
     "browserify": "^13.1.1",
-    "electron": "^1.4.12",
     "eslint": "^3.12.1",
     "faucet": "^0.0.1",
     "tap-browser-color": "^0.1.2",
     "tape": "^4.6.3",
-    "tape-run": "^2.1.4",
     "tweetnacl-util": "^0.13.5",
     "uglify-js": "^2.7.5"
   },