osgeo4w: fix shortcut removal

Author: jef-n

ms-windows/osgeo4w/preremove-desktop.bat

@@ -1,7 +1,7 @@
-del "%OSGEO4W_STARTMENU%\QGIS Desktop (@version@).lnk"
-del "%OSGEO4W_STARTMENU%\QGIS Browser (@version@).lnk"
-del "%ALLUSERSPROFILE%\Desktop\QGIS Desktop (@version@).lnk"
-del "%ALLUSERSPROFILE%\Desktop\QGIS Browser (@version@).lnk"
+del "%OSGEO4W_STARTMENU%\QGIS Desktop @version@.lnk"
+del "%OSGEO4W_STARTMENU%\QGIS Browser @version@.lnk"
+del "%ALLUSERSPROFILE%\Desktop\QGIS Desktop @version@.lnk"
+del "%ALLUSERSPROFILE%\Desktop\QGIS Browser @version@.lnk"
 del "%OSGEO4W_ROOT%"\bin\@package@.bat
 del "%OSGEO4W_ROOT%"\bin\@package@-browser.bat
 del "%OSGEO4W_ROOT%"\apps\@package@\python\qgis\qgisconfig.py