update_tpm_config_manifests was removed by:
https://review.opendev.org/c/starlingx/config/+/851510
Two methods were still referencing it.
However nothing was calling those methods, and therefore
all of the unused code is being removed.
Story: TBD
Task: TBD
Signed-off-by: Al Bailey <al.bailey@windriver.com>
Change-Id: If29a7f16f0c930823b06c1f496e9126027cf8c84