[MD settings] do not scroll when toggling advanced menu

This CL removes the code that will scroll to the advanced content area
when toggling the advanced menu in the side nav.

BUG=613708
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation

Review-Url: https://codereview.chromium.org/2127723003
Cr-Commit-Position: refs/heads/master@{#406667}

chrome/browser/resources/settings/settings_main/settings_main.js

@@ -89,16 +89,6 @@ Polymer({
         section: '',
         subpage: [],
       };
-      if (this.showAdvancedPage_) {
-        doWhenReady(
-            function() {
-              var advancedPage = this.$$('settings-advanced-page');
-              return !!advancedPage && advancedPage.scrollHeight > 0;
-            }.bind(this),
-            function() {
-              this.$$('#toggleContainer').scrollIntoView();
-            }.bind(this));
-      }
     }.bind(this));
 
     doWhenReady(