zip: remove unnecessary LARGE_FILE_SUPPORT CLFAGS

As the zip's configure has been updated to use compile-time
check, it now can do the check correctly, thus no need to
pass LARGE_FILE_SUPPORT to CFLAGS.

Signed-off-by: Chen Qi <Qi.Chen@windriver.com>
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>