deleted irrelevant code

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/colgem@35 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
indent 'calculate.cluster.size.moments.from.tree'

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/colgem@36 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
changed 'calculate.cluster.size.moments.from.tree' so that first order moments are also 

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/colgem@37 edb9625f-4e0d-4859-8d74-9fd3b1da38cb


git-svn-id: svn://svn.r-forge.r-project.org/svnroot/colgem@38 edb9625f-4e0d-4859-8d74-9fd3b1da38cb