Remove content/app/OWNERS

Remove content/app/OWNERS

The only OWNER in content/app/ is me, and I don't know why. I've no
particular knowledge of the code there and so I'm removing that OWNERS
file and letting changes in that directory fall back to content/ OWNERS.

BUG=none

Committed: https://crrev.com/661271755595fbe1b2abad7802ff37325e890e25
Cr-Commit-Position: refs/heads/master@{#328537}

[agl, 2015-05-06 00:57:54]

agl@chromium.org changed reviewers:
+ avi@chromium.org

[Avi (use Gerrit), 2015-05-06 14:57:49]

On 2015/05/06 00:57:55, agl wrote:

OK. LGTM

[Avi (use Gerrit), 2015-05-06 14:57:56]

The CQ bit was checked by avi@chromium.org

[commit-bot: I haz the power, 2015-05-06 14:58:32]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1128743002/1

[Avi (use Gerrit), 2015-05-06 14:59:32]

On 2015/05/06 14:57:49, Avi wrote:
> On 2015/05/06 00:57:55, agl wrote:
> 
> OK. LGTM

And you could always ask John why. https://codereview.chromium.org/8100013

[commit-bot: I haz the power, 2015-05-06 15:06:29]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-05-06 15:07:55]

Patchset 1 (id:??) landed as
https://crrev.com/661271755595fbe1b2abad7802ff37325e890e25
Cr-Commit-Position: refs/heads/master@{#328537}