Remove unused devDependencies

package.json

@@ -55,7 +55,6 @@
     "expect.js": "0.3.1",
     "front-matter": "^2.1.2",
     "fs-extra": "5.0.0",
-    "glob": "7.1.1",
     "google-closure-compiler": "20180101.0.0",
     "handlebars": "4.0.11",
     "html-webpack-plugin": "^3.0.1",
@@ -72,7 +71,6 @@
     "marked": "0.3.17",
     "mocha": "5.0.1",
     "mustache": "^2.3.0",
-    "nomnom": "1.8.1",
     "pixelmatch": "^4.0.2",
     "proj4": "2.4.4",
     "recast": "0.14.4",