remove ascii_vector from element_list https://trac.osgeo.org/grass/ticket/2440 (part 2)

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@64005 15284696-431f-4ddb-bdfa-cd5b030d7da7

lib/manage/element_list

@@ -16,7 +16,6 @@ cell:raster:raster:raster map(s)
   g3dcell:g3dcell
 grid3:raster_3d:3D raster:3D raster map(s)
 vector:vector:vector:vector map(s)
-dig_ascii:ascii_vector:ascii vector:ASCII vector map(s)
 paint/labels:labels:label:paint label file(s)
 windows:region:region definition:region definition(s)
 group:group:imagery group:imagery group(s)