Removed useless dependencies

package.json

@@ -50,9 +50,9 @@
       "no-extra-semi": 0
     }
   },
-  "ava": {
-    "require": [
-      "babel-register"
+  "babel": {
+    "plugins": [
+      "transform-flow-comments"
     ]
   },
   "dependencies": {
@@ -97,26 +97,17 @@
     "uid-promise": "1.0.0"
   },
   "devDependencies": {
-    "ava": "0.22.0",
-    "babel-cli": "6.24.1",
-    "babel-core": "^6.25.0",
+    "babel-core": "6.25.0",
     "babel-eslint": "7.2.3",
-    "babel-loader": "^7.1.1",
-    "babel-plugin-syntax-flow": "^6.18.0",
-    "babel-plugin-transform-flow-comments": "^6.22.0",
-    "babel-preset-flow": "6.23.0",
-    "babel-register": "6.24.1",
+    "babel-loader": "7.1.1",
+    "babel-plugin-transform-flow-comments": "6.22.0",
     "eslint": "4.4.1",
-    "flow-babel-webpack-plugin": "^1.1.0",
-    "flow-bin": "0.52.0",
-    "flow-remove-types": "1.2.1",
-    "gulp": "3.9.1",
-    "gulp-babel": "^7.0.0",
+    "flow-babel-webpack-plugin": "1.1.0",
     "lint-staged": "4.0.3",
     "pre-commit": "1.2.2",
     "prettier": "1.5.3",
-    "shebang-loader": "^0.0.1",
-    "webpack": "^3.5.4",
-    "webpack-node-externals": "^1.6.0"
+    "shebang-loader": "0.0.1",
+    "webpack": "3.5.4",
+    "webpack-node-externals": "1.6.0"
   }
 }

webpack.config.js

@@ -14,19 +14,9 @@ module.exports = {
       {
         test: /\.js$/,
         exclude: [/node_modules/],
-        use: {
-          loader: 'babel-loader',
-          options: {
-            plugins: ['transform-flow-comments']
-          }
-        }
-      },
-      {
-        test: /\.js$/,
-        exclude: [/node_modules/],
-        loader: 'shebang-loader'
+        loaders: ['shebang-loader', 'babel-loader']
       }
-    ],
+    ]
   },
   plugins: [
     new FlowBabelWebpackPlugin()