nsmgr: remove duplicate IsNSOrErr  call
@@ -116,10 +116,6 @@ func (n *namespace) Remove() error {
// GetNamespace takes a path and type, checks if it is a namespace, and if so
// returns an instance of the Namespace interface.
func GetNamespace(nsPath string, nsType NSType) (Namespace, error) {
- if err := nspkg.IsNSorErr(nsPath); err != nil {
- return nil, err
- }
-
ns, err := nspkg.GetNS(nsPath)
if err != nil {
return nil, err
