C2MS11 — Remove XSDs as Normative Documents

Some XSDs were provided by NASA when v1.0 was created. However, these are only useful in a PSM for XML and should not be considered normative for the PIM. We don't have any intention to maintain/update these, so they should be removed. If NASA wants to create and deliver these to users, that is fine, but the OMG should not be the broker for these files.

See the listing of "Normative Documents" here: https://www.omg.org/spec/C2MS/1.0

Remove XSD Listing from Doc and Do Not Publish on OMG Page

The XSD Listing on the OMG C2MS 1.0 Specification webpage will remain, but these are not to be included in the OMG C2MS 1.1 Specification page when created. The model .xmi file will be the only file listed under "NORMATIVE MACHINE READABLE DOCUMENTS".

Additionally, remove references to XSDs from the title page of the specification document.

A new .xmi file will be provided to the OMG, and, of course, the link to the .xmi will be updated to point to the new specification page, but that is left to the Document Editor, since there is nothing to link to as of the creation of this proposal.