Revert "lapi/fs.h: Include <sys/types.h>"

This reverts commit d4f44e2.

As the proper fix for missing loff_t definition on musl is in the
previous commit.

Author: pevik

include/lapi/fs.h

@@ -10,7 +10,6 @@
 # include <linux/fs.h>
 #endif
 
-#include <sys/types.h>
 #include <sys/user.h>
 #include <limits.h>
 #include "lapi/abisize.h"