missing: drop falloc related definitions

All these values are exposed earlier than linux-3.11.
Let's drop them.

src/basic/missing.h

@@ -5,7 +5,6 @@
 
 #include <errno.h>
 #include <inttypes.h>
-#include <linux/falloc.h>
 #include <sys/syscall.h>
 
 #ifndef FS_NOCOW_FL
@@ -68,14 +67,6 @@
 #define NS_GET_NSTYPE _IO(0xb7, 0x3)
 #endif
 
-#ifndef FALLOC_FL_KEEP_SIZE
-#define FALLOC_FL_KEEP_SIZE 0x01
-#endif
-
-#ifndef FALLOC_FL_PUNCH_HOLE
-#define FALLOC_FL_PUNCH_HOLE 0x02
-#endif
-
 #include "missing_audit.h"
 #include "missing_btrfs_tree.h"
 #include "missing_capability.h"