tools: simplify .eslintrc.js

Remove explicit setting of configuration options in rules when those options are the defaults. PR-URL: #45397 Reviewed-By: Joyee Cheung <[email protected]> Reviewed-By: Luigi Pinca <[email protected]>

Author: Trott

.eslintrc.js

@@ -117,8 +117,8 @@ module.exports ={
 // https://eslint.org/docs/rules/
 'accessor-pairs': 'error',
 'array-callback-return': 'error',
-'arrow-parens': ['error','always'],
-'arrow-spacing': ['error',{before: true,after: true}],
+'arrow-parens': 'error',
+'arrow-spacing': 'error',
 'block-scoped-var': 'error',
 'block-spacing': 'error',
 'brace-style': ['error','1tbs',{allowSingleLine: true}],
@@ -161,9 +161,9 @@ module.exports ={
 ObjectExpression: 'first',
 SwitchCase: 1,
 }],
-'key-spacing': ['error',{mode: 'strict'}],
+'key-spacing': 'error',
 'keyword-spacing': 'error',
-'linebreak-style': ['error','unix'],
+'linebreak-style': 'error',
 'max-len': ['error',{
 code: 120,
 ignorePattern: '^// Flags:',
@@ -177,7 +177,7 @@ module.exports ={
 'no-constant-condition': ['error',{checkLoops: false}],
 'no-constructor-return': 'error',
 'no-duplicate-imports': 'error',
-'no-else-return': ['error',{allowElseIf: true}],
+'no-else-return': 'error',
 'no-extra-parens': ['error','functions'],
 'no-lonely-if': 'error',
 'no-mixed-requires': 'error',
@@ -284,7 +284,7 @@ module.exports ={
 named: 'never',
 asyncArrow: 'always',
 }],
-'space-in-parens': ['error','never'],
+'space-in-parens': 'error',
 'space-infix-ops': 'error',
 'space-unary-ops': 'error',
 'spaced-comment': ['error','always',{