Remove API documentation from path README.

Remove API documentation from path README.

BUG=https://code.google.com/p/dart/issues/detail?id=8072
R=nweiz@google.com

Committed: https://code.google.com/p/dart/source/detail?r=25513

[Bob Nystrom, 2013-07-25 17:29:13]

We've got real API docs for path online now
(http://api.dartlang.org/docs/bleeding_edge/path.html), so we don't need them in
the README anymore!

[nweiz, 2013-07-25 23:14:13]

Shouldn't the README link to the API docs? Or the pubspec?

https://codereview.chromium.org/20364002/diff/1/pkg/path/README.md
File pkg/path/README.md (right):

https://codereview.chromium.org/20364002/diff/1/pkg/path/README.md#newcode25
pkg/path/README.md:25: This calls the top-level [join()] function to join
"directory" and
"[join()]" -> "[join]"

[Bob Nystrom, 2013-07-25 23:23:37]

The package page itself will link to the docs so I don't think we need to link
it in the README. See, for example: http://pub.dartlang.org/packages/args

https://codereview.chromium.org/20364002/diff/1/pkg/path/README.md
File pkg/path/README.md (right):

https://codereview.chromium.org/20364002/diff/1/pkg/path/README.md#newcode25
pkg/path/README.md:25: This calls the top-level [join()] function to join
"directory" and
On 2013/07/25 23:14:13, nweiz wrote:
> "[join()]" -> "[join]"

Done.

[nweiz, 2013-07-25 23:45:16]

Args has a "documentation" link in its pubspec, though, which path currently
does not.

[nweiz, 2013-07-25 23:59:20]

lgtm, although you should wait on the other pathos change before submitting this
one.

[Bob Nystrom, 2013-07-26 00:18:57]

Committed patchset #3 manually as r25513 (presubmit successful).