Revert "New Data Submission Documentation: Checklist.md"
Revert "New Data Submission Documentation: Checklist.md"

This reverts commit 735e977124bf33b89d6f09a3719fa5d0b9b81c6d.

NCIP/gdc-docs,NCIP/gdc-docs,NCIP/gdc-docs,NCIP/gdc-docs