Unsupport Ubuntu 12.04 as a build environment

With this CL, Ubuntu 12.04 is no longer a reference environment to build Mozc binaries for Android, NaCl, and Linux.  Hereafter only Ubuntu 14.04 is supported to build those binaries.
This is just a removal of Docker files.  Hence no behavior change is intended.


git-svn-id: https://mozc.googlecode.com/svn/trunk@486 a6090854-d499-a067-5803-1114d4e51264
5 files changed
tree: cd884b7dd40070a77c2e4e9687de607bfc3b3770
  1. src/