In our production and test environments (Sakai 2.7.1 & 2.9.1), we don't use OSP neither Metaobj. Both tools are stealthed in sakai. properties.
However, in Resources / Options, "Form Item" still is shown in the list of resources types. We would like to disable it, maybe by a configuration option or detecting that Metaobj is stealthed.
I paste some relevant information from Chris Wayne Maurer:
I think it's done here: metaobj/metaobj-impl/api-impl/src/java/org/sakaiproject/metaobj/registry/FormResourceType.java
In the init() method.
So, would be fairly easy to wrap it up in a property to enable/disable the registering of the type.