Remove this width request

I see no reason why this button should be wider
than the others.

Change-Id: Ibe7bc46d1e7a1d99d9d7dbc7bed8242d608efac2

sc/uiconfig/scalc/ui/sidebaralignment.ui

@@ -131,7 +131,6 @@
                 <property name="show_arrow">False</property>
                 <child>
                   <object class="GtkToolButton" id="verttop">
-                    <property name="width_request">30</property>
                     <property name="visible">True</property>
                     <property name="can_focus">False</property>
                     <property name="action_name">.uno:AlignTop</property>