drop browser-perf, it was never used. update to latest css-loader that does not break compatibility.

Signed-off-by: Daniel Holbach <daniel@weave.works>

client/package.json

@@ -59,9 +59,8 @@
     "babel-plugin-transform-object-rest-spread": "6.26.0",
     "babel-preset-env": "1.6.1",
     "babel-preset-react": "6.24.1",
-    "browser-perf": "1.4.11",
     "clean-webpack-plugin": "0.1.17",
-    "css-loader": "0.28.7",
+    "css-loader": "0.28.11",
     "eslint": "4.9.0",
     "eslint-config-airbnb": "16.1.0",
     "eslint-loader": "1.9.0",

client/test/browser-perf/main.js

@@ -1,9 +0,0 @@
-var browserPerf = require('browser-perf');
-var options = {
-    selenium: 'http://local.docker:4444/wd/hub',
-    actions: [require('./custom-action.js')()]
-}
-browserPerf('http://local.docker:4040/dev.html', function(err, res){
-    console.error(err);
-    console.log(res);
-}, options);