solaris: remove MS_ defintions in <sys/mount.h>

We already get these from our API version of <sys/mount.h>

bsd/sys/cddl/compat/opensolaris/sys/mount.h

@@ -30,12 +30,8 @@
 #define	_OPENSOLARIS_SYS_MOUNT_H_
 
 #include <sys/param.h>
-
 #include <osv/mount.h>
 
-#define	MS_FORCE	MNT_FORCE
-#define	MS_REMOUNT	MNT_UPDATE
-
 typedef	struct fid		fid_t;
 
 #endif	/* !_OPENSOLARIS_SYS_MOUNT_H_ */