fix(ci): drop apply_tftf_patch()

Only apply_tfa_patch() is in use and no other repositories get patches.
Tftf has never had any either. So remove this to simplify.

Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>
Change-Id: I56ece7e83f518728097f7f2f67d8eded567ff2f5
2 files changed