🆒 Remove some unused dependencies

Author: kimuraz

package.json

@@ -38,22 +38,13 @@
     "eslint-plugin-html": "^3.0.0",
     "eslint-plugin-import": "^2.2.0",
     "eventsource-polyfill": "^0.9.6",
-    "express": "^4.14.1",
     "extract-text-webpack-plugin": "^2.0.0",
     "file-loader": "^0.11.1",
     "friendly-errors-webpack-plugin": "^1.1.3",
     "html-webpack-plugin": "^2.28.0",
     "http-proxy-middleware": "^0.17.3",
     "inject-loader": "^3.0.0",
     "jest": "^22.0.6",
-    "karma-coverage": "^1.1.1",
-    "karma-mocha": "^1.3.0",
-    "karma-phantomjs-launcher": "^1.0.2",
-    "karma-phantomjs-shim": "^1.4.0",
-    "karma-sinon-chai": "^1.3.1",
-    "karma-sourcemap-loader": "^0.3.7",
-    "karma-spec-reporter": "0.0.31",
-    "karma-webpack": "^2.0.2",
     "moxios": "^0.4.0",
     "opn": "^5.1.0",
     "optimize-css-assets-webpack-plugin": "^2.0.0",
@@ -67,7 +58,6 @@
     "uglifyjs-webpack-plugin": "^0.4.6",
     "url-loader": "^0.5.8",
     "vue-loader": "^13.0.4",
-    "vue-style-loader": "^3.0.1",
     "vue-template-compiler": "^2.4.2",
     "webpack": "^3.8.1",
     "webpack-bundle-analyzer": "^2.2.1",