Clean up no-unused-vars lint errors

atom/browser/api/lib/app.js

@@ -60,9 +60,8 @@ var fn = function(name) {
     return webContents.emit.apply(webContents, [name, event].concat(slice.call(args)));
   });
 };
-var i, len, name;
+var i, len;
 for (i = 0, len = ref1.length; i < len; i++) {
-  name = ref1[i];
   fn(ref1[i]);
 }
 

atom/browser/api/lib/auto-updater/squirrel-update-win.js

@@ -13,7 +13,7 @@ const exeName = path.basename(process.execPath);
 // Spawn a command and invoke the callback when it completes with an error
 // and the output from standard out.
 var spawnUpdate = function(args, detached, callback) {
-  var error, error1, errorEmitted, spawnedProcess, stderr, stdout;
+  var error, errorEmitted, spawnedProcess, stderr, stdout;
   try {
     spawnedProcess = spawn(updateExe, args, {
       detached: detached
@@ -58,23 +58,22 @@ var spawnUpdate = function(args, detached, callback) {
 };
 
 // Start an instance of the installed app.
-exports.processStart = function(callback) {
+exports.processStart = function() {
   return spawnUpdate(['--processStart', exeName], true, function() {});
 };
 
 // Download the releases specified by the URL and write new results to stdout.
 exports.download = function(updateURL, callback) {
   return spawnUpdate(['--download', updateURL], false, function(error, stdout) {
-    var error1, json, ref, ref1, update;
+    var json, ref, ref1, update;
     if (error != null) {
       return callback(error);
     }
     try {
-
       // Last line of output is the JSON details about the releases
       json = stdout.trim().split('\n').pop();
       update = (ref = JSON.parse(json)) != null ? (ref1 = ref.releasesToApply) != null ? typeof ref1.pop === "function" ? ref1.pop() : void 0 : void 0 : void 0;
-    } catch (error1) {
+    } catch (jsonError) {
       return callback("Invalid result:\n" + stdout);
     }
     return callback(null, update);
@@ -90,11 +89,10 @@ exports.update = function(updateURL, callback) {
 
 // Is the Update.exe installed with the current application?
 exports.supported = function() {
-  var error1;
   try {
     fs.accessSync(updateExe, fs.R_OK);
     return true;
-  } catch (error1) {
+  } catch (error) {
     return false;
   }
 };

atom/browser/api/lib/browser-window.js

@@ -56,7 +56,7 @@ BrowserWindow.prototype._init = function() {
 
   // Change window title to page title.
   this.webContents.on('page-title-updated', (function(_this) {
-    return function(event, title, explicitSet) {
+    return function(event, title) {
       _this.emit('page-title-updated', event, title);
       if (!event.defaultPrevented) {
         return _this.setTitle(title);

atom/browser/api/lib/dialog.js

@@ -5,7 +5,6 @@ const v8Util = process.atomBinding('v8_util');
 
 var slice = [].slice;
 var includes = [].includes;
-var indexOf = [].indexOf;
 
 var fileDialogProperties = {
   openFile: 1 << 0,

atom/browser/api/lib/menu-item.js

@@ -1,6 +1,4 @@
-var MenuItem, methodInBrowserWindow, nextCommandId, rolesMap, v8Util;
-
-v8Util = process.atomBinding('v8_util');
+var MenuItem, methodInBrowserWindow, nextCommandId, rolesMap;
 
 nextCommandId = 0;
 

atom/browser/api/lib/menu.js

@@ -210,7 +210,7 @@ Menu.prototype.insert = function(pos, item) {
           return v8Util.getHiddenValue(item, 'checked');
         },
         set: (function(_this) {
-          return function(val) {
+          return function() {
             var j, len, otherItem, ref1;
             ref1 = _this.groupsMap[item.groupId];
             for (j = 0, len = ref1.length; j < len; j++) {

atom/browser/api/lib/web-contents.js

@@ -3,7 +3,6 @@
 const EventEmitter = require('events').EventEmitter;
 const deprecate = require('electron').deprecate;
 const ipcMain = require('electron').ipcMain;
-const session = require('electron').session;
 const NavigationController = require('electron').NavigationController;
 const Menu = require('electron').Menu;
 
@@ -62,7 +61,7 @@ const webFrameMethods = [
   'insertText',
   'setZoomFactor',
   'setZoomLevel',
-  'setZoomLevelLimits',
+  'setZoomLevelLimits'
 ];
 
 let wrapWebContents = function(webContents) {