remove: redundant header file

src/common/sundry.c

@@ -6,8 +6,6 @@
 #include <stdarg.h>
 #include <stdlib.h>
 #include <string.h>
-#include <unistd.h>
-#include <sys/time.h>
 #include "logger.h"
 #include "constant.h"
 #include "structure.h"