* gnu/packages/bioinformatics.scm (python-dendropy, python2-dendropy): Update to 4.4.0. [source]: Use GitHub URI. Remove patch. [properties]: Remove field. (python2-dendropy)[arguments]: Run tests with setup.py. [native-inputs]: Remove 'python2-nose. * gnu/packages/patches/python-dendropy-fix-tests.patch: Delete file. * gnu/local.mk (dist_patch_DATA): Delete it.