Simplify xo config (#1447)

Author: fisker

package.json

@@ -90,40 +90,17 @@
 		]
 	},
 	"xo": {
-		"plugins": [
-			"eslint-plugin"
-		],
-		"extends": [
-			"plugin:eslint-plugin/all"
-		],
 		"ignores": [
-			"test/integration/{fixtures,fixtures-local}/**",
 			".cache-eslint-remote-tester",
-			"eslint-remote-tester-results"
+			"eslint-remote-tester-results",
+			"test/integration/{fixtures,fixtures-local}/**"
 		],
 		"rules": {
-			"quotes": ["error", "single"],
-			"unicorn/no-null": "error",
-			"unicorn/prevent-abbreviations": [
-				"error",
-				{
-					"replacements": {
-						"ref": {
-							"reference": true
-						}
-					}
-				}
-			],
+			"arrow-body-style": "off",
 			"operator-linebreak": "off",
-			"arrow-body-style": "off"
+			"unicorn/no-null": "error"
 		},
 		"overrides": [
-			{
-				"files": "rules/utils/*.js",
-				"rules": {
-					"eslint-plugin/prefer-object-rule": "off"
-				}
-			},
 			{
 				"files": [
 					"**/*.js"
@@ -133,16 +110,29 @@
 				},
 				"rules": {
 					"strict": "error",
-					"unicorn/prefer-module": "off",
-					"eslint-plugin/require-meta-schema": "off",
-					"eslint-plugin/require-meta-has-suggestions": "off",
-					"eslint-plugin/require-meta-docs-url": "off",
+					"unicorn/prefer-module": "off"
+				}
+			},
+			{
+				"files": [
+					"rules/*.js"
+				],
+				"plugins": [
+					"eslint-plugin"
+				],
+				"extends": [
+					"plugin:eslint-plugin/all"
+				],
+				"rules": {
 					"eslint-plugin/require-meta-docs-description": [
 						"error",
 						{
 							"pattern": ".+"
 						}
-					]
+					],
+					"eslint-plugin/require-meta-docs-url": "off",
+					"eslint-plugin/require-meta-has-suggestions": "off",
+					"eslint-plugin/require-meta-schema": "off"
 				}
 			}
 		]