refactor(arm): remove unused SP_MIN UART macros

Currently, tf-a has been refactored to support the multi UARTs (boot and
runtime UARTs). As a result, the SP_MIN UART related code has been
removed, and the macros are no longer used.

Therefore, this patch removes these unused UART macros.

Change-Id: I496349f876ba918fcafa7ed6c65d149914762290
Signed-off-by: Leo Yan <leo.yan@arm.com>
3 files changed