Revert "app_shell: Add experimental shellPrivate extension API"

Revert "app_shell: Add experimental shellPrivate extension API"

This reverts commit e99bfcb9de717ee2bf1d87f1367795bfa90436b9.

Going forward app_shell specific APIs will go in //extensions/shell

BUG=424651
TEST=compiles

Committed: https://crrev.com/0bbe26e33106bf857ef79886e3ddf227fc103034
Cr-Commit-Position: refs/heads/master@{#300150}

[James Cook, 2014-10-17 18:08:20]

jamescook@chromium.org changed reviewers:
+ rockot@chromium.org

[James Cook, 2014-10-17 18:08:20]

jamescook@chromium.org changed required reviewers:
+ rockot@chromium.org

[James Cook, 2014-10-17 18:08:21]

rockot, PTAL

Because the existing API does nothing useful I'm going to revert it, then build
a stub for the chrome.shell.getAuthToken() APi in the right place.

[Ken Rockot(use gerrit already), 2014-10-17 18:29:48]

lgtm

[James Cook, 2014-10-17 18:35:13]

The CQ bit was checked by jamescook@chromium.org

[commit-bot: I haz the power, 2014-10-17 18:36:15]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/662473006/1

[commit-bot: I haz the power, 2014-10-17 20:04:03]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2014-10-17 20:04:59]

Patchset 1 (id:??) landed as
https://crrev.com/0bbe26e33106bf857ef79886e3ddf227fc103034
Cr-Commit-Position: refs/heads/master@{#300150}