Un-mark pub_lish_test as flaky now that socket issues are resolved.

BUG=7819

Review URL: https://codereview.chromium.org//11826067

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge@16944 260f80e4-7a28-3924-810f-c04153c831b5

test/pub.status

@@ -12,6 +12,3 @@
 
 [ $system == windows ]
 io_test: Fail, Pass, Timeout # Issue 7505
-
-[ $system == linux ]
-pub_lish_test: Pass, Fail # Issue 7819
\ No newline at end of file