Can we removed all devel agents from released streams.

[Curtis Hovey-Canonical]

We have another cases where an env using --upload-tools tried to
upgrade from 1.18.4 to 1.20.x and got 1.19.x. I want to remove all the
devel agents from the released streams.

We have already created separate streams for devel and proposed agents
to ensure environments cannot upgrade to them without explicitly set
the environment to use them.

I want to ensure we don't have old devel agents in our released
streams. This will prevent anyone from getting these version from our
official locations. This may also prevent environments that are idling
on obsolete version from deploying more units.

Are there other issues that will happen if I remove the devel agents?
Is this a bad and dangerous idea?

-- 
Curtis Hovey
Canonical Cloud Development and Operations
http://launchpad.net/~sinzui