TCP: Removed an assert from onBind.

git-svn-id: svn://svn.code.sf.net/p/dmtcp/code/trunk@2510 ba6dc0ae-232f-0410-883f-9ebac64fc565
Updated TODO.

git-svn-id: svn://svn.code.sf.net/p/dmtcp/code/trunk@2511 ba6dc0ae-232f-0410-883f-9ebac64fc565