removing unneeded easyinstall and duplicate setuptools

classes/easyinstall.bbclass

-
-pkg_postinst_${PN} () {
-       if test ! -e ${PYTHON_SITEPACKAGES_DIR}/easy-install.pth; then
-            cat > ${PYTHON_SITEPACKAGES_DIR}/easy-install.pth << EOF
-import sys; sys.__plen = len(sys.path)
-import sys; new=sys.path[sys.__plen:]; del sys.path[sys.__plen:]; p=getattr(sys,'__egginsert',0); sys.path[p:p]=new; sys.__egginsert = p+len(new)
-EOF
-        fi
-        sed -i '$ i ${EASYINSTALL_${PN}}' ${PYTHON_SITEPACKAGES_DIR}/easy-install.pth
-}
-

classes/setuptools.bbclass

-inherit distutils
-
-DEPENDS += "python-setuptools-native"
-
-DISTUTILS_INSTALL_ARGS = "--root=${D} \
-    --single-version-externally-managed \
-    --prefix=${prefix} \
-    --install-data=${datadir}"