Revert 229967 "Add structure packing support for mojo modules"
This is causing "Linux ChromiumOS Full" to fail on perm_tests
http://build.chromium.org/p/chromium.chromiumos/builders/Linux%20ChromiumOS%20Full/builds/27051/steps/check_perms/logs/stdio
/b/build/slave/Linux_ChromiumOS/build/src/mojo/public/bindings/generators/mojom_data_tests.py: Has executable bit but not shebang
> Add structure packing support for mojo modules
>
> BUG=None
> TEST=new tests
> R=viettrungluu@chromium.org, viettrungluu
>
> Review URL: https://codereview.chromium.org/
27226006
TBR=davemoore@chromium.org
Review URL: https://codereview.chromium.org/
29053003
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@229987 0039d316-1c4b-4281-b951-d872f2087c98