chore: remove xo

package.json

@@ -9,7 +9,7 @@
     "clear": "rm -rf dist/ && mkdir dist/",
     "lint:staged": "lint-staged",
     "prepublish": "npm run build",
-    "test": "xo && flow --show-all-errors",
+    "test": "flow --show-all-errors",
     "format": "prettier --write --single-quote --trailing-comma all --tab-width 4 src/**/*.js"
   },
   "lint-staged": {
@@ -97,21 +97,11 @@
   },
   "devDependencies": {
     "babel-cli": "^6.0.0",
-    "babel-eslint": "^7.1.1",
     "babel-plugin-transform-decorators-legacy": "^1.3.4",
     "babel-preset-react-native": "^1.8.0",
-    "eslint": "^3.17.1",
-    "eslint-config-xo": "^0.17.0",
-    "eslint-plugin-babel": "^4.1.1",
-    "eslint-plugin-import": "^2.2.0",
-    "eslint-plugin-no-empty-blocks": "0.0.2",
-    "eslint-plugin-no-use-extend-native": "^0.3.3",
-    "eslint-plugin-promise": "^3.5.0",
-    "eslint-plugin-react": "^6.10.0",
     "flow-bin": "^0.42.0",
     "lint-staged": "^3.3.1",
     "pre-commit": "^1.2.2",
-    "prettier": "^0.19.0",
-    "xo": "^0.17.1"
+    "prettier": "^0.19.0"
   }
 }