[AC-2522] Remove collection enhancements opt-in (#4110)

* Delete controller endpoint
* Delete command
* Drop sproc

util/Migrator/DbScripts/2024-05-23_00_DropEnableCollectionEnhancements.sql

@@ -0,0 +1,5 @@
+IF OBJECT_ID('[dbo].[Organization_EnableCollectionEnhancements]') IS NOT NULL
+BEGIN
+    DROP PROCEDURE [dbo].[Organization_EnableCollectionEnhancements]
+END
+GO