chore(package): Remove unused dev dependencies

Author: christopherthielen

package.json

@@ -70,21 +70,14 @@
     "@types/jasmine": "^2.2.34",
     "@types/jquery": "^3.2.17",
     "@uirouter/publish-scripts": "2.2.4",
-    "babel-core": "^6.22.1",
-    "babel-loader": "^7.1.2",
-    "conventional-changelog": "^1.1.0",
-    "conventional-changelog-cli": "^1.1.1",
     "jasmine-core": "^2.4.1",
     "karma": "^2.0.0",
     "karma-chrome-launcher": "^2.2.0",
-    "karma-coverage": "^1.1.1",
     "karma-jasmine": "^1.1.0",
     "karma-phantomjs-launcher": "^1.0.2",
     "karma-script-launcher": "~1.0.0",
     "karma-sourcemap-loader": "^0.3.7",
-    "karma-systemjs": "^0.16.0",
     "karma-webpack": "^2.0.2",
-    "readline-sync": "^1.4.5",
     "rollup": "^0.53.0",
     "rollup-plugin-commonjs": "^8.2.6",
     "rollup-plugin-node-resolve": "^3.0.0",
@@ -93,7 +86,6 @@
     "rxjs": "5.5.6",
     "shelljs": "^0.7.0",
     "shx": "^0.2.2",
-    "systemjs": "^0.20.19",
     "tslint": "^5.4.3",
     "typedoc": "~0.9.0",
     "typedoc-plugin-external-module-name": "^1.0.2",
@@ -103,7 +95,6 @@
     "ui-router-typedoc-themes": "^1.0.0",
     "webpack": "^3.10.0",
     "webpack-dev-server": "2.9.7",
-    "webpack-visualizer-plugin": "^0.1.10",
     "zone.js": "^0.8.18"
   },
   "greenkeeper": {