Remove gyp for mojo_surfaces targets

Remove gyp for mojo_surfaces targets

The only targets using these libraries are mojo targets which are
GN-only, so we don't need to keep gyp rules around.

Committed: https://crrev.com/25d1f9299f32cf322a5927da7659ae6434ac6157
Cr-Commit-Position: refs/heads/master@{#304353}

[jamesr, 2014-11-15 02:18:31]

jamesr@chromium.org changed reviewers:
+ sky@chromium.org

[sky, 2014-11-15 02:33:22]

LGTM

[jamesr, 2014-11-15 02:55:43]

The CQ bit was checked by jamesr@chromium.org

[commit-bot: I haz the power, 2014-11-15 02:57:10]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/730813002/1

[commit-bot: I haz the power, 2014-11-15 04:21:49]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2014-11-15 04:22:36]

Patchset 1 (id:??) landed as
https://crrev.com/25d1f9299f32cf322a5927da7659ae6434ac6157
Cr-Commit-Position: refs/heads/master@{#304353}