fdo#33848 Show zoom Slider when the focus is on the Slides Sidebar

Inspired by this patch from Ariel Constenla-Haile:https://issues.apache.org/ooo/attachment.cgi?id=80653&action=diff

Change-Id: I8e482d9829eeb81a1f7cc89a4de781ae768f3333
Reviewed-on: https://gerrit.libreoffice.org/6141Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

sd/sdi/SlideSorterController.sdi

@@ -186,12 +186,6 @@ interface SlideSorterView
         ExecMethod = ExecStatusBar ;
         StateMethod = GetStatusBarState ;
     ]
-    SID_ATTR_ZOOMSLIDER // status()
-    [
-        ExecMethod = ExecStatusBar ;
-        StateMethod = GetStatusBarState ;
-    ]
-
     SID_RELOAD // ole : no, status : ?
     [
         GroupId = GID_DOCUMENT ;

sd/source/ui/slidesorter/controller/SlsSlotManager.cxx

@@ -876,10 +876,6 @@ void SlotManager::GetStatusBarState (SfxItemSet& rSet)
             aLayoutStr = aLayoutStr.copy(0, nIndex);
         rSet.Put( SfxStringItem( SID_STATUS_LAYOUT, aLayoutStr ) );
     }
-    if( SFX_ITEM_AVAILABLE == rSet.GetItemState( SID_ATTR_ZOOMSLIDER ) )
-    {
-        rSet.Put( SfxVoidItem( SID_ATTR_ZOOMSLIDER ) );
-    }
 }
 
 void SlotManager::ShowSlideShow( SfxRequest& rReq)