common: Makefile: drop duplicated line

obj-$(CONFIG_$(SPL_TPL_)YMODEM_SUPPORT) += xyzModem.o is there,
no need obj-$(CONFIG_SPL_YMODEM_SUPPORT) += xyzModem.o
Signed-off-by: NPeng Fan <peng.fan@nxp.com>
Reviewed-by: NSimon Glass <sjg@chromium.org>

common/Makefile

@@ -68,7 +68,6 @@ obj-$(CONFIG_DFU_OVER_USB) += dfu.o
 endif
 obj-$(CONFIG_SPL_HASH_SUPPORT) += hash.o
 obj-$(CONFIG_TPL_HASH_SUPPORT) += hash.o
-obj-$(CONFIG_SPL_YMODEM_SUPPORT) += xyzModem.o
 obj-$(CONFIG_SPL_LOAD_FIT) += common_fit.o
 obj-$(CONFIG_SPL_NET_SUPPORT) += miiphyutil.o
 obj-$(CONFIG_$(SPL_TPL_)OF_LIBFDT) += fdt_support.o