Avoid nil pointer dereference while creating a container with an empty Config

Signed-off-by: Antonio Murdaca <runcom@linux.com>
Upstream-commit: 4ce817796e639391f6bc3e338f5a88985daacaca
Component: engine

components/engine/api/server/server.go

@@ -658,10 +658,6 @@ func (s *Server) postCommit(version version.Version, w http.ResponseWriter, r *h
 		return err
 	}
 
-	if c == nil {
-		c = &runconfig.Config{}
-	}
-
 	containerCommitConfig := &daemon.ContainerCommitConfig{
 		Pause:   pause,
 		Repo:    r.Form.Get("repo"),