remove link to roadmap as it's .. complete

Author: djmitche

README.md

@@ -1,18 +1,14 @@
 # TaskCluster RFCs
 
-* [Issues](https://github.com/taskcluster/taskcluster-rfcs/issues) are RFCs in development, not yet in the proposal stage;
-* [pull requests](https://github.com/taskcluster/taskcluster-rfcs/pulls) contain proposed RFCs; and
-* [the repo](rfcs/) holds RFCs on which we have reached consensus.
-
-See [our roadmap](roadmap.md) for a more general idea of where we are headed.
 
 ## Background
 
 **What**: Ideas and projects of the TaskCluster Team, in one discoverable place.
 
 **Why**: This repo serves as a place to coordinate design and architecture, so that everyone can participate and past discussions are accessible to everyone.
 
-**How**: Each idea gets an [issue](https://github.com/taskcluster/taskcluster-rfcs/issues) and discussion takes place there to turn the idea into a proposal and eventually implement it -- or to agree not to act on the idea. See [mechanics](mechanics.md) for more detail.
+**How** Proposed RFCs go into [pull requests](https://github.com/taskcluster/taskcluster-rfcs/pulls), and [the repo](rfcs/) holds RFCs on which we have reached consensus.
+See [mechanics](mechanics.md) for more detail.
 
 ## RFCs