rootfs_rpm.bbclass: remove temporary yum config - rootfs has one from yum package

git-svn-id: https://svn.o-hand.com/repos/poky/trunk@5433 311d38ba-8fff-0310-9ca6-ca027cbcb966

meta/classes/rootfs_rpm.bbclass

@@ -144,6 +144,9 @@ EOF
 	# remove lock files
 	rm -f ${IMAGE_ROOTFS}/var/lib/rpm/__db.*
 
+	# remove no longer used yum.conf
+	rm -f ${IMAGE_ROOTFS}/etc/yum.conf
+
 	log_check rootfs 	
 }