Fix lint warnings.

Author: kevinpschaaf

test/unit/strict-template-policy.html

@@ -59,7 +59,6 @@
   <div id="target"></div>
 
   <script type="module">
-    import {Polymer} from '../../polymer-legacy.js';
     import {flush} from '../../lib/utils/flush.js';
 
     suite('strictTemplatePolicy', function() {
@@ -79,7 +78,7 @@
         window.uncaughtErrorFilter = window.top.uncaughtErrorFilter = function(err) {
           uncaughtError = err;
           return true;
-        }
+        };
         assert.throws(function() {
           fn();
           // Re-throw any uncaughtErrors