[Issue #1869] Removes old deliverable specs

[widal001]

Summary

Removes old deliverable specs that were still in documentation/deliverables/ from before we moved the deliverable drafting process into the wiki.

Fixes #1869

Time to review: 2 mins

Changes proposed

What was added, updated, or removed in this PR.

• Deletes the documentation/deliverables/ sub-directory
• Moves the grants protocol draft spec into the wiki sub-directory

Context for reviewers

Testing instructions, background context, more in-depth details of the implementation, and anything else you'd like to call out or ask reviewers. Explain how the changes were verified.

Note: This also removes some of the old deliverables that weren't attached to 30k foot deliverables (e.g. communications tools, and developer tools). Do we want to preserve those old specs? Or just retire them now that we've coalesced around only creating deliverable specs for 30k deliverables?

Additional information

Screenshots, GIF demos, code examples or output to help show the changes working as expected.

[sumiat]

Thanks for making these updates @widal001! Where are the deliverable specifications from the public wiki living on Github? Sorry, I might have missed that! I have a couple other comments based on that response

[sumiat]

Got the link: https://github.com/HHS/simpler-grants-gov/tree/main/documentation/wiki/product/deliverables! thanks for letting me know. I think this makes sense to remove the deliverables. planning for API/frontend/etc, developer tools, and communication platforms - we do have the ADRs created for those so the planning work around that is tracked. Thanks for separating out grants protocol too.

[lucasmbrown-usds]

Thanks for the cleanup!