Bug 1534205 Search Widget wrong layout after updating period r=petru

Removed search widget update interval in order to prevent bad layout re-configuration.

Differential Revision: https://phabricator.services.mozilla.com/D22947

--HG--
extra : moz-landing-system : lando

mobile/android/app/src/main/res/xml/search_widget_info.xml

@@ -12,8 +12,7 @@
     android:minResizeWidth="64dp"
     android:minResizeHeight="40dp"
     android:previewImage="@drawable/search_widget_preview"
-    android:resizeMode="horizontal"
-    android:updatePeriodMillis="300000">
+    android:resizeMode="horizontal">
 
 </appwidget-provider>