Bug 1769569 - Enable ESLint rule no-define-cc-etc for devtools sjs files. r=jdescottes

Differential Revision: https://phabricator.services.mozilla.com/D146449

devtools/.eslintrc.js

@@ -110,6 +110,7 @@ module.exports = {
       excludedFiles: [
         // Enable the rule on JSM, test head files and some specific files.
         "**/*.jsm",
+        "**/*.sjs",
         "**/test/**/head.js",
         "**/test/**/shared-head.js",
         "client/debugger/test/mochitest/code_frame-script.js",

devtools/client/netmonitor/test/sjs_slow-script-server.sjs

@@ -1,8 +1,5 @@
 "use strict";
 
-const Cc = Components.classes;
-const Ci = Components.interfaces;
-
 let timer;
 
 const DELAY_MS = 2000;

devtools/client/netmonitor/test/sjs_slow-test-server.sjs

@@ -1,8 +1,5 @@
 "use strict";
 
-const Cc = Components.classes;
-const Ci = Components.interfaces;
-
 let timer;
 
 const DELAY_MS = 10000;