Remove cross-env

Author: Spring3

package-lock.json

@@ -7,7 +7,7 @@
     "start": "npm run prepack && electron --noDevServer ./main/index.js",
     "dev": "webpack-dev-server",
     "pack": "electron-builder --dir dist",
-    "prepack": "node_modules/.bin/cross-env NODE_ENV=production webpack --config webpack.config.js",
+    "prepack": "NODE_ENV=production webpack --config webpack.config.js",
     "build": "npm run pack && electron-builder",
     "release": "npm run pack && electron-builder -p always",
     "postinstall": "electron-builder install-app-deps",
@@ -36,11 +36,13 @@
       "dist/**/*",
       "node_modules/**/*"
     ],
-    "publish": [{
-      "provider": "github",
-      "owner": "Spring3",
-      "repo": "redshape"
-    }],
+    "publish": [
+      {
+        "provider": "github",
+        "owner": "Spring3",
+        "repo": "redshape"
+      }
+    ],
     "win": {
       "target": [
         "nsis",
@@ -71,7 +73,6 @@
     "babel-jest": "^24.1.0",
     "babel-loader": "^8.0.5",
     "babel-plugin-styled-components": "^1.10.0",
-    "cross-env": "^5.2.0",
     "css-loader": "^2.1.0",
     "electron": "^5.0.2",
     "electron-builder": "^20.41.0",