Revert "update formdesigner ref"

This reverts commit 82413658fb2c27e1fc00bfe338f6168c2d10a37f.
Revert "Merge pull request #2825 from dimagi/vellum-includes"

This reverts commit 8a9b2aa090fb394705a92c387159776a64745dc6, reversing
changes made to fc2ccc9a7dd8b69c34249ad88aede81234ee1cd9.
Merge pull request #2831 from dimagi/revert-vellum

Revert vellum