Bug 1609966 - Enable ESLint for services/sync/modules/constants.js. r=lina

Differential Revision: https://phabricator.services.mozilla.com/D60280

--HG--
extra : moz-landing-system : lando

.eslintignore

@@ -250,9 +250,6 @@ services/common/kinto-offline-client.js
 # Webpack-bundled library
 services/fxaccounts/FxAccountsPairingChannel.js
 
-# Uses `#filter substitution`
-services/sync/modules/constants.js
-
 # Servo is imported.
 servo/
 

services/sync/modules/constants.js

@@ -5,7 +5,6 @@
 // Process each item in the "constants hash" to add to "global" and give a name
 var EXPORTED_SYMBOLS = [];
 for (let [key, val] of Object.entries({
-
   // Don't manually modify this line, as it is automatically replaced on merge day
   // by the gecko_migration.py script.
   WEAVE_VERSION: "1.76.0",
@@ -131,7 +130,6 @@ DEVICE_TYPE_DESKTOP:                   "desktop",
   DEVICE_TYPE_MOBILE: "mobile",
 
   SQLITE_MAX_VARIABLE_NUMBER: 999,
-
 })) {
   this[key] = val;
   this.EXPORTED_SYMBOLS.push(key);