examples/embedding: Remove obsolete fatfs files from build.

examples/embedding/Makefile.upylib

@@ -149,13 +149,6 @@ LIB_SRC_C = $(addprefix lib/,\
 	timeutils/timeutils.c \
 	)
 
-ifeq ($(MICROPY_FATFS),1)
-LIB_SRC_C += $(addprefix lib/,\
-	fatfs/ff.c \
-	fatfs/option/ccsbcs.c \
-	)
-endif
-
 OBJ = $(PY_O)
 OBJ += $(addprefix $(BUILD)/, $(SRC_C:.c=.o))
 OBJ += $(addprefix $(BUILD)/, $(LIB_SRC_C:.c=.o))