Revert of Build a basic Mojo service framework for device/usb

Revert of Build a basic Mojo service framework for device/usb (patchset #4 id:60001 of https://codereview.chromium.org/1155163008/)

Reason for revert:
Broken Win8 GN build

http://build.chromium.org/p/chromium.win/builders/Win8%20GN%20%28dbg%29/builds/6609

Original issue's description:
> Build a basic Mojo service framework for device/usb
>
> BUG=492805
> R=reillyg@chromium.org
>
> Committed: https://crrev.com/249cc25c5e0a2e338cd3efec6e1a3964e7c983e9
> Cr-Commit-Position: refs/heads/master@{#331707}

TBR=reillyg@chromium.org,sky@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=492805
Committed: https://crrev.com/c710e9810205d15f4fe4db480cf4acbcd5a8462b
Cr-Commit-Position: refs/heads/master@{#331709}

[Ken Rockot(use gerrit already), 2015-05-28 00:56:06]

Created Revert of Build a basic Mojo service framework for device/usb

[commit-bot: I haz the power, 2015-05-28 00:57:26]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1158323002/1

[commit-bot: I haz the power, 2015-05-28 00:59:20]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-05-28 01:00:01]

Patchset 1 (id:??) landed as
https://crrev.com/c710e9810205d15f4fe4db480cf4acbcd5a8462b
Cr-Commit-Position: refs/heads/master@{#331709}