fix toolbox (bug introduced in https://trac.osgeo.org/grass/changeset/62540, trac https://trac.osgeo.org/grass/ticket/2470)

git-svn-id: https://svn.osgeo.org/grass/grass/branches/releasebranch_7_0@62543 15284696-431f-4ddb-bdfa-cd5b030d7da7

gui/wxpython/xml/toolboxes.xml

@@ -77,7 +77,6 @@
       <separator/>
       <subtoolbox name="HydrologicModeling"/>
       <subtoolbox name="GroundwaterModeling"/>
-      <subtoolbox name="LandscapeStructureModeling"/>
       <subtoolbox name="LandscapePatchAnalysis"/>
       <subtoolbox name="WildfireModeling"/>
       <separator/>