implement compose secret syntax

client/client_impl.go

@@ -53,7 +53,6 @@ const (
 	pathUsers          = "%s/api/users"
 	pathUser           = "%s/api/users/%s"
 	pathBuildQueue     = "%s/api/builds"
-	pathAgent          = "%s/api/agents"
 )
 
 type client struct {
@@ -367,14 +366,6 @@ func (c *client) Sign(owner, name string, in []byte) ([]byte, error) {
 	return ioutil.ReadAll(rc)
 }
 
-// AgentList returns a list of build agents.
-func (c *client) AgentList() ([]*model.Agent, error) {
-	var out []*model.Agent
-	uri := fmt.Sprintf(pathAgent, c.base)
-	err := c.get(uri, &out)
-	return out, err
-}
-
 // Registry returns a registry by hostname.
 func (c *client) Registry(owner, name, hostname string) (*model.Registry, error) {
 	out := new(model.Registry)