binfmt: remove taso from linux_binprm struct

With commit 987f20a9dcce ("a.out: Remove the a.out implementation"), the
use of the special taso flag for alpha architectures in the linux_binprm
struct is gone.

Remove the definition of taso in the linux_binprm struct.

No functional change.

Signed-off-by: Lukas Bulwahn <[e-mail]>
Reviewed-by: "Eric W. Biederman" <[e-mail]>
Signed-off-by: Kees Cook <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]

include/linux/binfmts.h

···
 		 * original userspace.
 		 */
 		point_of_no_return:1;
-#ifdef __alpha__
-	unsigned int taso:1;
-#endif
 	struct file *executable; /* Executable to pass to the interpreter */
 	struct file *interpreter;
 	struct file *file;