fix compile error for mac (rm mod_partition.so and mod_io.so temporarily).

rm mod_partition.so and mod_io.so temporarily

for i in modules src; do make -C $i; done
gcc -I../include -Wall -fPIC --shared -g -O2 -Wno-strict-aliasing -Wl,-undefined -Wl,dynamic_lookup mod_io.c -o mod_io.so
mod_io.c:13:10: fatal error: 'linux/major.h' file not found
#include <linux/major.h>

gcc -I../include -Wall -fPIC --shared -g -O2 -Wno-strict-aliasing -Wl,-undefined -Wl,dynamic_lookup mod_partition.c -o mod_partition.so
mod_partition.c:1:10: fatal error: 'mntent.h' file not found
#include <mntent.h>