r.li TODO: remove zero data test because all values but NULL are valid patch types

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@59190 15284696-431f-4ddb-bdfa-cd5b030d7da7

raster/r.li/TODO

@@ -91,15 +91,6 @@ r.li.patchdensity forests conf=movwindow7 out=forests_p_dens7mask --o
 d.rast.leg forests_p_dens7mask
 # -> no negative values! but MASK is respected
 
-# zero data test
-r.mapcalc forests=0
-r.li.patchdensity forests conf=movwindow7 out=forests_p_dens7 --o
-d.rast.leg forests_p_dens7mask
-r.info -r forests_p_dens7
-min=19.841270
-max=19.841270
-# -> all cells are 19.841270 ?!
-
 ---------
 
 Add example which results in an ASCII output file