Removed some obsolete code

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@35647 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
fixed loop test for row shift

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@35648 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
remove AlgoCellRanges on clearView

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@35649 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e