show "set start time" button without margin on Galaxy Tab 1

mobile/com.sap.sailing.racecommittee.app/res/layout/race_time_picker.xml

@@ -44,9 +44,8 @@
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_below="@+id/picker"
-        android:layout_margin="@dimen/default_margin_twice"
-        android:maxWidth="200dp"
         android:layout_centerHorizontal="true"
+        android:layout_marginTop="@dimen/default_margin_twice"
         android:text="@string/race_set_time"/>
 
     <TextView