The easiest way would be to re-create that stream based on a workspace that didn't have suspended change sets. Discard the change sets instead of suspending them, then create the stream off of the workspace.

One clarification point:
They must have created the stream from the workspace before suspending
the change-sets (otherwise, they wouldn't have been present in the
stream).

But in any case, to get rid of those change sets, load that stream into
a workspace and then ask for the History of the workspace. This will
get you a list of change-sets. There are then two ways to get rid of
those change-sets:
(1) Select the change sets; select the "discard" operation; do a
"replace" operation, to replace the configuration of the stream with the
current configuration of your workspace. But the "discard" operation
may fail, because it would produce a "gap" (i.e. there are change-sets
in the workspace that you wanted to keep, but which depend on changes in
a change-set you are asking to discard). In that case, you need to use
option (2):
(2) One by one, select the change sets you want to get rid of, and
select the "reverse" operation. This will do a "subtractive merge" and
back out the changes made in those change sets. When you are done,
deliver the resulting new change-set to the stream. I've submitted a
work item requesting the ability to "reverse" more than one change set
at the same time, but to my knowledge, this is not yet supported.

Cheers,
Geoff

On 1/13/2011 12:53 PM, shonuff wrote:

Hello all,

We needed to create a stream based on a specific build.
Unfortunately, the snapshot for that build was not present and there
had been several changes to the stream subsequent to that build.
Fortunately, somebody had a workspace was still based on the needed
build. They had some pending changes they were working on, but
suspended that change set so that we could create a new stream based
on that workspace.

The problem is that now when anybody loads the stream they see the
suspended change set. Is there a way to remove that suspended change
set form the stream?

I've loaded the stream and discarded the workspace, but this didn't
show up as a pending change that I could deliver.