Use delegation in ProtectedRef concern

app/models/concerns/protected_ref.rb

@@ -6,6 +6,8 @@ module ProtectedRef
     validates :name, presence: true
     validates :project, presence: true
+    delegate :matching, :matches?, :wildcard?, to: :ref_matcher
+
     def self.matching_refs_accesible_to(ref, user, action: :push)
       access_levels_for_ref(ref, action).any? do |access_level|
         access_level.check_access(user)
@@ -27,18 +29,6 @@ module ProtectedRef
     project.commit(self.name)
   end
-  def matching(refs)
-    ref_matcher.matching(refs)
-  end
-
-  def matches?(refs)
-    ref_matcher.matches?(refs)
-  end
-
-  def wildcard?
-    ref_matcher.wildcard?
-  end
-
   private
   def ref_matcher