remove docgen from the sdk, and generating docs with docgen

remove docgen from the sdk

BUG=
R=whesse@google.com

Committed: https://github.com/dart-lang/sdk/commit/3d37a55dceb313412e2f6da5354583d72acfd2db

[keertip, 2015-09-18 16:56:35]

keertip@google.com changed reviewers:
+ whesse@google.com

[Bill Hesse, 2015-09-18 19:33:40]

LGTM with comment

https://codereview.chromium.org/1356943002/diff/1/tools/create_sdk.py
File tools/create_sdk.py (left):

https://codereview.chromium.org/1356943002/diff/1/tools/create_sdk.py#oldcode131
tools/create_sdk.py:131: 'utils_wrapper', 'pub', 'dartdoc']:
This is used in test_suite.dart, and perhaps other places.  test_suite uses it
from the sdk location it is copied to here.  So this must be left in.  Grep the
repository to find the other places it is used, also, to see what else it is
used for besides dartdoc.

[keertip, 2015-09-18 20:17:13]

On 2015/09/18 19:33:40, Bill Hesse wrote:
> LGTM with comment
> 
> https://codereview.chromium.org/1356943002/diff/1/tools/create_sdk.py
> File tools/create_sdk.py (left):
> 
>
https://codereview.chromium.org/1356943002/diff/1/tools/create_sdk.py#oldcode131
> tools/create_sdk.py:131: 'utils_wrapper', 'pub', 'dartdoc']:
> This is used in test_suite.dart, and perhaps other places.  test_suite uses it
> from the sdk location it is copied to here.  So this must be left in.  Grep
the
> repository to find the other places it is used, also, to see what else it is
> used for besides dartdoc.

Added it back to the sdk.

[keertip, 2015-09-18 20:18:20]

Committed patchset #2 (id:20001) manually as
3d37a55dceb313412e2f6da5354583d72acfd2db (presubmit successful).