tools: enable no-useless-backreference lint rule

cjihrig · MylesBorins · commit 35d056935691 · 2020-03-11T14:21:08.000-04:00
PR-URL: #31400 Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de> Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com> Reviewed-By: Rich Trott <rtrott@gmail.com>
diff --git a/.eslintrc.js b/.eslintrc.js
@@ -274,6 +274,7 @@ module.exports = {
       functions: false,
       variables: false,
     }],
+    'no-useless-backreference': 'error',
     'no-useless-call': 'error',
     'no-useless-catch': 'error',
     'no-useless-concat': 'error',
