DevTools: Remove unused variables. Disallow unused variables with eslint

third_party/WebKit/Source/devtools/front_end/ui/InplaceEditor.js

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 /**
  * @unrestricted
  */
 UI.InplaceEditor = class {
   /**
    * @param {!Element} element
    * @param {!UI.InplaceEditor.Config=} config
@@ skipping 82 matching lines @@
     config = config || new UI.InplaceEditor.Config(function() {}, function() {});
     var editingContext = {element: element, config: config};
     var committedCallback = config.commitHandler;
     var cancelledCallback = config.cancelHandler;
     var pasteCallback = config.pasteHandler;
     var context = config.context;
     var isMultiline = config.multiline || false;
     var moveDirection = '';
     var self = this;
 
-    /**
-     * @param {!Event} e
-     */
-    function consumeCopy(e) {
-      e.consume();
-    }
-
     this.setUpEditor(editingContext);
 
     editingContext.oldText = isMultiline ? config.initialValue : this.editorContent(editingContext);
 
     /**
      * @param {!Event=} e
      */
     function blurEventListener(e) {
       if (config.blurHandler && !config.blurHandler(element, e))
         return;
@@ skipping 146 matching lines @@
     this.smartIndent = smartIndent;
   }
 
   /**
    * @param {function(!Event):string} postKeydownFinishHandler
    */
   setPostKeydownFinishHandler(postKeydownFinishHandler) {
     this.postKeydownFinishHandler = postKeydownFinishHandler;
   }
 };