selftests/efivarfs: fix tests for failed write removal

The current self tests expect the zero size remnants that failed
variable creation leaves.  Update the tests to verify these are now
absent.

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
This commit is contained in:
James Bottomley 2025-01-19 10:12:13 -05:00 • committed by Ard Biesheuvel
commit fd3aa3d5e5