UNO_NAME_FILTER_NAME is not used anywhere

Change-Id: I135359d9cce4a3195a8e2099545ffafa5b767cdb
Reviewed-on: https://gerrit.libreoffice.org/68013
Tested-by: Jenkins
Reviewed-by: Tor Lillqvist <tml@collabora.com>

sw/inc/unoprnms.hxx

@@ -408,7 +408,6 @@
 #define UNO_NAME_LOAD_FRAME_STYLES "LoadFrameStyles"
 #define UNO_NAME_LOAD_TEXT_STYLES "LoadTextStyles"
 #define UNO_NAME_FILE_NAME "FileName"
-#define UNO_NAME_FILTER_NAME "FilterName"
 #define UNO_NAME_COPY_COUNT "CopyCount"
 #define UNO_NAME_COLLATE "Collate"
 #define UNO_NAME_SORT "Sort"