feat(arm): remove the bl2 static c file

There is no need for the bl2 static c file for
CCA and Duaroot CoT, remove them from the repo

Change-Id: I251d085034dae0f6b3c6cefdbb129a9e1dd0530b
Signed-off-by: Xialin Liu <Xialin.Liu@ARM.com>
2 files changed