tree 4800413651ad0a7aec5f31ad5f385546f4348357
parent dac6eee12c99d66fa4776aa98388f00ca4cb801d
author Xin Gao <xingao@google.com> 1518322591 -0500
committer Xin Gao <xingao@google.com> 1518460582 +0000

Delete obsolete ubuntu and xenial package names.

We used to have them to generate container for toolchain config
generation purpose. Since we have fully migrated to use the new package
manager in docker_toolchain_autoconfig, we no longer need these.

Change-Id: If691020111e75d08722f43fe296385adeed5154f