diff --git a/app/models/miq_region.rb b/app/models/miq_region.rb
index 6839fe00478..f5b5bc4b8ff 100644
--- a/app/models/miq_region.rb
+++ b/app/models/miq_region.rb
@@ -160,10 +160,6 @@ def ems_containers
     ext_management_systems.select { |e| e.kind_of?(ManageIQ::Providers::ContainerManager) }
   end
 
-  def ems_middlewares
-    ext_management_systems.select { |e| e.kind_of?(ManageIQ::Providers::MiddlewareManager) }
-  end
-
   def ems_datawarehouses
     ext_management_systems.select { |e| e.kind_of?(ManageIQ::Providers::DatawarehouseManager) }
   end
diff --git a/app/models/zone.rb b/app/models/zone.rb
index f364d0b8953..874f5d982b1 100644
--- a/app/models/zone.rb
+++ b/app/models/zone.rb
@@ -171,14 +171,6 @@ def ems_containers
     ext_management_systems.select { |e| e.kind_of?(ManageIQ::Providers::ContainerManager) }
   end
 
-  def ems_middlewares
-    ext_management_systems.select { |e| e.kind_of?(ManageIQ::Providers::MiddlewareManager) }
-  end
-
-  def middleware_servers
-    ems_middlewares.flat_map(&:middleware_servers)
-  end
-
   def ems_datawarehouses
     ext_management_systems.select { |e| e.kind_of?(ManageIQ::Providers::DatawarehouseManager) }
   end