Resolves: tdf#124028 dangling "completion" entries block responses

so e.g. math font dialog doesn't react to button clicks.

since...

commit ab8e0f58
Author: Caolán McNamara <caolanm@redhat.com>
Date:   Fri Jan 18 17:08:58 2019 +0000

    Resolves: tdf#122484 replace gtk autocomplete with vcl-alike autoselect

remove the entrycompletions but left the reference to them

Change-Id: Ia02d0e657fc114692f69f88890192c470a1cab22
Reviewed-on: https://gerrit.libreoffice.org/69208
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

basctl/uiconfig/basicide/ui/managebreakpoints.ui

@@ -202,7 +202,6 @@
                             <property name="can_focus">True</property>
                             <property name="hexpand">True</property>
                             <property name="activates_default">True</property>
-                            <property name="completion">entrycompletion1</property>
                           </object>
                           <packing>
                             <property name="left_attach">0</property>

cui/uiconfig/ui/charnamepage.ui

@@ -162,7 +162,6 @@
                         <property name="can_focus">True</property>
                         <property name="hexpand">True</property>
                         <property name="activates_default">True</property>
-                        <property name="completion">entrycompletion1</property>
                       </object>
                       <packing>
                         <property name="left_attach">0</property>
@@ -247,7 +246,6 @@
                         <property name="visible">True</property>
                         <property name="can_focus">True</property>
                         <property name="activates_default">True</property>
-                        <property name="completion">entrycompletion2</property>
                       </object>
                       <packing>
                         <property name="left_attach">0</property>
@@ -333,7 +331,6 @@
                         <property name="visible">True</property>
                         <property name="can_focus">True</property>
                         <property name="activates_default">True</property>
-                        <property name="completion">entrycompletion3</property>
                       </object>
                       <packing>
                         <property name="left_attach">0</property>

cui/uiconfig/ui/paratabspage.ui

@@ -89,7 +89,6 @@
                     <property name="visible">True</property>
                     <property name="can_focus">True</property>
                     <property name="activates_default">True</property>
-                    <property name="completion">entrycompletion1</property>
                     <property name="hexpand">True</property>
                   </object>
                   <packing>

sfx2/uiconfig/ui/newstyle.ui

@@ -153,7 +153,6 @@
                         <property name="visible">True</property>
                         <property name="can_focus">True</property>
                         <property name="activates_default">True</property>
-                        <property name="completion">entrycompletion1</property>
                         <property name="hexpand">True</property>
                         <child internal-child="accessible">
                           <object class="AtkObject" id="stylename-atkobject">

starmath/uiconfig/smath/ui/fontdialog.ui

@@ -152,7 +152,6 @@
                             <property name="can_focus">True</property>
                             <property name="hexpand">True</property>
                             <property name="activates_default">True</property>
-                            <property name="completion">entrycompletion1</property>
                           </object>
                           <packing>
                             <property name="left_attach">0</property>