Remove capability package

It's no longer used. This commit can always be reverted later if it's
needed again.

server/main.go

@@ -26,7 +26,6 @@ import (
 	"github.com/drone/drone/plugin/remote/gitlab"
 	"github.com/drone/drone/plugin/remote/gogs"
 	"github.com/drone/drone/server/blobstore"
-	"github.com/drone/drone/server/capability"
 	"github.com/drone/drone/server/datastore"
 	"github.com/drone/drone/server/datastore/database"
 	"github.com/drone/drone/server/worker/director"
@@ -66,8 +65,6 @@ var (
 	nodes      StringArr
 
 	db *sql.DB
-
-	caps map[string]bool
 )
 
 func main() {
@@ -100,8 +97,6 @@ func main() {
 	gitlab.Register()
 	gogs.Register()
 
-	caps = map[string]bool{}
-
 	// setup the database and cancel all pending
 	// commits in the system.
 	db = database.MustConnect(*driver, *datasource)
@@ -165,7 +160,6 @@ func ContextMiddleware(c *web.C, h http.Handler) http.Handler {
 		ctx = pool.NewContext(ctx, workers)
 		ctx = director.NewContext(ctx, worker)
 		ctx = pubsub.NewContext(ctx, pub)
-		ctx = capability.NewContext(ctx, caps)
 
 		// add the context to the goji web context
 		webcontext.Set(c, ctx)