remove d3 rollup that doesnt seem to serve a purpose

package.json

@@ -11,7 +11,6 @@
   "engine": "node >= 4.8.1",
   "license": "MIT",
   "scripts": {
-    "prepublish": "rollup -c && uglifyjs d3.js -c -m -o d3.min.js",
     "extract-translations": "grep -hroE \"(translate\\('[^']+'\\))|(tip.bind\\(null, '[^']+')\" src/* | grep -oE \"'[^']+'\" | grep -oE \"[^']+\" | sort -u -f",
     "clean": "rimraf build",
     "start": "node devServer.js",