[CrOS MultiDevice] Remove extra quote from Wi-Fi Sync settings

Change-Id: I2b7df8f0f529a8d5a7108db90ab49330cc3ad469
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2573392
Commit-Queue: Kyle Horimoto <khorimoto@chromium.org>
Commit-Queue: Jon Mann <jonmann@chromium.org>
Auto-Submit: Kyle Horimoto <khorimoto@chromium.org>
Reviewed-by: Jon Mann <jonmann@chromium.org>
Cr-Commit-Position: refs/heads/master@{#833607}

chrome/browser/resources/settings/chromeos/multidevice_page/multidevice_subpage.html

@@ -143,7 +143,7 @@
                 MultiDeviceFeature.WIFI_SYNC, pageContentData)]]"
             restamp>
           <settings-multidevice-wifi-sync-item id="wifiSyncItem"
-              page-content-data="[[pageContentData]]"">
+              page-content-data="[[pageContentData]]">
           </settings-multidevice-wifi-sync-item>
         </template>
       </div>