WebUI: Fix violations of no-extra-semi lint rule.

chrome/browser/resources/chromeos/login/screen_supervised_user_creation.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.
 
 /**
  * @fileoverview Legacy supervised user creation flow screen.
  */
 
 login.createScreen('SupervisedUserCreationScreen',
                    'supervised-user-creation', function() {
@@ skipping 385 matching lines @@
       var scrollTop = scroller.scrollTop;
       var top = pod.offsetTop - scroller.offsetTop;
       var clientHeight = scroller.clientHeight;
 
       var self = scroller;
 
       // Function to adjust the tops of viewport and row.
       function scrollToAdjustTop() {
         self.scrollTop = top;
         return true;
-      };
+      }
       // Function to adjust the bottoms of viewport and row.
       function scrollToAdjustBottom() {
         var cs = getComputedStyle(self);
         var paddingY = parseInt(cs.paddingTop, 10) +
                        parseInt(cs.paddingBottom, 10);
 
         if (top + itemHeight > scrollTop + clientHeight - paddingY) {
           self.scrollTop = top + itemHeight - clientHeight + paddingY;
           return true;
         }
         return false;
-      };
+      }
 
       // Check if the entire of given indexed row can be shown in the viewport.
       if (itemHeight <= clientHeight) {
         if (top < scrollTop)
           return scrollToAdjustTop();
         if (scrollTop + clientHeight < top + itemHeight)
           return scrollToAdjustBottom();
       } else {
         if (scrollTop < top)
           return scrollToAdjustTop();
@@ skipping 1153 matching lines @@
 
       if (selectedIndex >= 0)
         this.importList_.selectPod(this.importList_.pods[selectedIndex]);
 
       if (this.currentPage_ == 'username')
         this.getScreenElement('import-link').hidden = (userList.length == 0);
     },
   };
 });