xcompile: Fix harmless typo

As CFLAGS_GCC and CFLAGS_CLANG are still the same at this point, this
just removes some duplicate flags.

Change-Id: I532e5fa146891b70e4c1949c614b280055524593
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33580
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

0 files changed, 0 insertions, 0 deletions