Temporarily disable puffin to unblock ota generation

This unblocks the incremental OTA generation for now. And we will revert
this ad hoc fix when the bug is fixed in puffin.

Bug: 72815313
Test: generate an incremental OTA for walleye 4504078-4585723
Change-Id: Idab8a0496a59358275a4e6c333cd8eb8d4d6219f
(cherry picked from commit 7d280052)
Reviewed-on: https://chromium-review.googlesource.com/907222


Commit-Ready: Amin Hassani <ahassani@chromium.org>
Tested-by: Amin Hassani <ahassani@chromium.org>
Reviewed-by: Amin Hassani <ahassani@chromium.org>
Reviewed-by: Sen Jiang <senj@chromium.org>