Remove no-search attribute from cookies-page element

The no-search attribute was erroneously left permanently enabled for the
cookies-page element after the solidification of the privacy settings
redesign. This CL removes the attribute, which should never be present.

Bug: 1067336
Change-Id: Ifc56db8e951492d0aee9fdee67efe9f9b7589a13
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2346668Reviewed-by: Sean Harrison <harrisonsean@chromium.org>
Commit-Queue: Theodore Olsauskas-Warren <sauski@google.com>
Cr-Commit-Position: refs/heads/master@{#796756}

chrome/browser/resources/settings/privacy_page/privacy_page.html

@@ -127,7 +127,7 @@
           </category-setting-exceptions>
         </settings-subpage>
       </template>
-      <template is="dom-if" route-path="/cookies" no-search>
+      <template is="dom-if" route-path="/cookies">
         <settings-subpage id="cookies" page-title="$i18n{cookiePageTitle}"
             learn-more-url="$i18n{cookiesSettingsHelpCenterURL}"
             search-label="$i18n{siteSettingsAllSitesSearch}"