tdf#93139 Orca Screen Reader does not read bullet

To make Orca read bullet lists lets not suppress it
from the accessible text. This has a downside on Windows
when using NVDA which due to a hack in NVDA now reads 
the bullet twice. This hack is done because of this
bug so I think we should fix it.

Change-Id: Ibc11c1e0545f8cde4cd3d4a0d665ea47d645a61d
Reviewed-on: https://gerrit.libreoffice.org/18398Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Jacobo Aragunde Pérez <jaragunde@igalia.com>

sw/source/core/access/accportions.cxx

@@ -154,7 +154,6 @@ void SwAccessiblePortionData::Special(
             sDisplay = OUString(sal_Unicode(0xfffc));
             break;
         case POR_GRFNUM:
-        case POR_BULLET:
             break;
         case POR_FLD:
         case POR_HIDDEN:
@@ -180,6 +179,7 @@ void SwAccessiblePortionData::Special(
             }
             break;
         case POR_NUMBER:
+        case POR_BULLET:
         {
             sDisplay = rText + " ";
             break;